Free-to-play Constitution training

Constitution is a passive measure of a player's fighting capacity. Constitution experience is gained in all combat involving actual damage to the target for free players.

Strictly speaking, for every 10 damage points dealt by either melee, ranged or magic, 1.333 or 4/3 experience is gained; the only forms of combat that do not increase Constitution experience at all are curse spells and prayer.

There is no quest that increases Constitution experience in the F2P world, but some quests increase combat stats; completing the quests would slightly decrease the Constitution level for that combat level.

The discussion of "Constitution training" is strongly related to different kinds of pure. Constitution takes in a small part of combat level, so players might choose to reduce it or increase it as far as possible.

Combat level and Constitution
According to the article Combat Level, a formula is available for calculation of combat level, which can be rewritten as:


 * This table indicates several important things
 * Defence, prayer and constitution levels are always taken into account for calculation of combat level. A pure should avoid training defence, constitution and prayer.
 * Approximately, attaining 43 prayer for Protect from melee costs 5.375 combat level increase.
 * Approximately, attaining 40 defence for rune armour costs 10 combat level increase. This also gives 12408 Constitution experience except Dragon Slayer is completed.
 * If the total level of Attack and Strength are equal, Melee combat level is not affected. The larger the difference of level between attack and strength, the more total experience is needed and more constitution experience generated.
 * The rating factor of Attack plus Strength, Ranged, Magic is 2:3:3, however the combat triangle in free-to-play is not fully balanced, especially in PvP activities in which players are unwilling to risk very valuable items, such as Sighted maple longbow. However it generalized that, as the three values: 2/3 * (attack + strength), magic, range are nearly the same, the combat level isn't pushed very far except by the constitution experience generated and prayer which is independant.
 * The rating factor of Attack plus Strength, Ranged, Magic is 2:3:3, however the combat triangle in free-to-play is not fully balanced, especially in PvP activities in which players are unwilling to risk very valuable items, such as Sighted maple longbow. However it generalized that, as the three values: 2/3 * (attack + strength), magic, range are nearly the same, the combat level isn't pushed very far except by the constitution experience generated and prayer which is independant.

Keeping Low Constitution
Keeping low Constitution is an important measure for pures mainly, because Constitution can directly contribute to their combat level.

Mage pures
Mage pures can have as little Constitution experience as possible, mainly due to the fact some magic can avoid Constitution experience completely.

Defence should be untrained. These skills are independent of attacker skills, thus the combat level will be kept very low. Attack, strength and ranged should be carefully trained, probably by completing Vampire Slayer and using antique lamps to earn experience, in order to incur as little Constitution XP as possible. By sacrificing 5.25 combat level a character can attain 45 prayer, which is vital in many situations like PvP. Also, you can cast curse on the mage dummies in Lumbridge for no Constitution experience. The best way to train mage quickly and cheaply without gaining experience in constitution is casting wind strike on air wizards. Air wizards are located south of Falador and when wind strike is casted on them they take no damage but magic experience is gained. The same thing can be done by cast earth strike on earth wizards, water strike on water wizards or fire strike on fire wizards but beware of damage caused by them. Ranged armour and a full inventory of food is recommended as you will not receive any drops.

Ranged pures
No matter how a ranged pure trains, 1/3 of ranged experience is always added to constitution experience. Thus defence should be kept as low as possible: in F2P case, either 1, 20, or 40 defence.

Generally any kind of training is sufficient but fighting low defense monsters is useful. Dungeoneering can be made useof too, because it doesn't depend on actual cash a player has in bank and stock.

Melee pures
Excluding some quests which can directly give some melee combat experience, 1/3 of melee experience is always added to Constitution experience, especially for high-levelled players. To minimize the hitpoint, the attack and strength level should be similar or even equal, and defence should be kept as low as possible. Since the experience for higher levels go proportionally, there are many free-to-play players with similar attack and strength and low ranged and magic level, yet yielding a considerably high combat level with slightly low hitpoint.

Effect of Prayer
Prayer carries 1/8 bonus of combat level. Attaining 43 prayer for all protection prayers causes increase of 5.375 combat levels. Prayer is the least important stat involving both lifepoint and combat level as it carries the lowest ratio in combat level, and training prayer doesn't train Constitution as well. The saved combat level can be used for training prayer, as it can be surprising to opponents.

Curse spells
To train magic without training constitution, the best way is to repeatedly cast curse spells, which can give magic experience only. The spells Confuse, Weaken, Curse can be cast at minimum level 3, 11, 19 respectively, giving experience of 13, 20.5, 29 XP respectively. The best place to train curse spells is at Lumbridge combat hall, in which the magic dummies are capable to be multi-casted.

Failed combat spells
Another way to train magic without training Constitution is casting splashed combat spells. Strike spells, as the weakest kind of the missile, hit very low and have low cost. Earth strike or fire strike can be used for this purpose, and wearing full metal armour is essential for splashing, except attacking the magic dummies, which gives only 0.1 Constitution XP per damage dealt.With a staff of air mind runes are only needed to cast air strikes, which can be used to perform half-afk training (combat does not reset timer, so players should regular check the process.) A Tome of frost can even make water strikes nearly free to train, but it costs a large sum of tokens.

High alchemy
Please notice high alchemy requires 55 magic to be cast, or 53 with Wizard's mind bomb. If fund is available, high alchemy is a good choice to train magic without increasing Constitution experience. The most common thing people alchemise are maple longbows.

Quests
This quest gives 325 experience capable to raise magic level from 1 to 4, making cursed spells training available without having to use missile spells to train first. This quest gives 875 experience capable to raise magic level from 1 to 8, making cursed spells training available without having to use missile spells to train first. 4825 attack experience is given upon completion of quest, which is vital when wanting to level up attack without putting experience into constitution. This quest is only available for melee pures training some of defence and strength. The defence level must be lower than 33 in order to attain no more than defence level of 40 after the quest. This quest yields 18650 strength and defence experience upon completion of quest. Since completing this quest would cause the defence level and strength level be at least 33, it is not popular with pures.
 * Witch's Potion
 * Imp Catcher
 * Vampire Slayer
 * Dragon Slayer

Antique lamps and one-use lamps
One-use lamps include Lumbridge and Draynor Diary lamps, giving 500, 1000, 1500 XP for beginner, easy and medium diaries, which the last one can only be attained with 31 magic; Misthalin Training Centre of Excellence gives 2 lamps with 500 XP each; job/holiday event lamp/experience awards, which is discontinued for F2P players; 2 lamps from Sir Vant after Learning the Ropes is completed, giving 250 XP each.

Varrock dummies
They provide attack experience until level 8, and don't give any Constitution experience. However regular clicking is needed.

Tanking strategy
This section is to provide a guide to maximise lifepoints, also known as Tanking strategy, without increasing combat level at a large rate. Tanking strategy also provides a basic idea to balance a character perfectly or attaining minimum combat level as a non-pure.

To Tank, as mentioned in combat level, the ratio of Attack plus strength, magic, ranged should be 3:2:2, while the experience difference between Attack and strength should be large. For spells, see the sub-paragraph below. There is also some advice on quests involving combat experience. However, maximizing constitution doesn't require players to be non-pure. A ranged-melee hybrid can also train into an efficient tank by good training.

Quests
To tackle quests with combat experience as award, the skills which the quest reward offers should be temporarily abandoned. Below is a list for tackling quest rewards:
 * Vampire Slayer: 4825 Attack experience is given, which can increase attack level from 1 to 20, or cause level increase until 43 attack.
 * Witch's Potion: 325 Magic experience is given, which can increase magic level from 1 to 4, or cause level increase until 15 magic.
 * Imp Catcher: Similar to Witch's Potion except the experience is more.
 * Dragon Slayer: 18650 Strength and Defence experience is given, which can increase combat level from 3 to 33, 4 levels increase until level 41, 3 until level 44, 2 until level 49, or 1 until 56 strength and defence. The reward of Dragon Slayer may also directly increase combat level, due to the fact defence is an independent skill. It is strongly recommended to have less than 33 defence before completing the quest unless defence is purposely trained, since upon completion, the 18650 defence experience awarded would push the defence level over 40, which is undesired, unless defence level is already lower than 33. Attack, magic and ranged should be trained before completing the quest.

Usage of spells
To attain higher constitution, non-pures can cast any missile spells to NPCs with a very large lifepoint supply, like lesser demons, although blast spells tend to have a slightly lower ratio of Constitution experience to magic experience gained. Avoid usage of curse spells, never train at the dummies and wear the best equipment mage gear to train to ensure damage is dealt properly. Avoiding overuse of Fist of Guthix is also important, as players tend to use Protect from Magic, causing the constitution experience to be gained much more slowly.

It is recommended to use combat spells in dungeoneering as much as possible, since the base experience of spells is cut into 10% but damage experience is not, giving a very large portion of constitution experience, close to one third of magic experience gained, which melee and ranged both gives ratio of one third. However using excess gatestone teleports will yield pure magic experience and reduce the ratio of experience. A player with lower than 65 runecrafting is recommended to bind death runes in order to cast blast spells to speed up the training process (although it disables binding arrows).

Note: A runecrafting level of 14 is also needed for crafting fire runes, for the strongest F2P combat spell Fire Blast.