Steel titan

Steel titans are level 99 Summoning familiars, introduced with the "Summoning 2" update on the 31 March 2008. It is currently the most powerful familiar, and it has the second-highest hitpoints of any creature in RuneScape.

Steel titans are able to deal a maximum of 24 damage. With the Steel of Legends special move, it can deal up to 96 total damage (by hitting 4 consecutive 24s), possibly killing a player in one blow. Due to this effectiveness, they are commonly used by level 99 summoners fighting in the Duel Arena. Using Ruby bolts (e) on a Steel titan will allow the titan to be hit by a maximum of 150 damage in a single blow, the highest hit in the game, not counting the Anger weapons in A Soul's Bane.

Steel titans provide an invisible 15% boost to the summoner's melee defences.

Pouch
Steel titan pouch is made by using a Summoning pouch on a Summoning obelisk with 178 spirit shards, a Crimson charm and a steel platebody in the inventory. Making the pouch earns 435.2 experience points. Using the pouch to summon a Steel titan gains 4.9 experience points, and costs 10 Summoning points.

Scroll
Steel of legends scroll enables the use of the Steel of Legends special move for a Steel titan. Using the pouch on a Summoning obelisk creates 10 scrolls.

Special move: Steel of Legends
Steel of Legends is a special move for Steel titans, which inflicts four ranged attacks instead of one in the next attack. This attack may be used five times in a row with the required number of scrolls.

Interaction
Unlike most of the familiar conversations, Steel Titan only has one set of dialogue.
 * Steel Titan : Let us go forth to battle, my lady/my lord!
 * Player : Why do you like fighting so much? It's not very nice to kill things.
 * Steel Titan : It is the most honourable thing in life.
 * Player : But I summoned you, I'm not sure I can even say that you're alive...
 * Steel Titan : Alas, you have discovered the woe of all summoned creatures' existence.
 * Player : Really? I was right?
 * Steel Titan : Oh, woe...woe!

Trivia

 * The Steel titan seems to have been inspired by the Pokemon Registeel. Not only do the titan and Registeel look similar, but they are made of the same metal, supposedly (though Registeel is actually made of a supernatural metal; only the name suggest it's made of steel). Even more uncanny is that Registeel's name literally means "king of steel" and the Steel titan's examine claims that it's "the king of the titans".