Tiamat

 is an Item in League of Legends

Synergy

 * Bonus damage will splash
 * The bonus to the splash damage will stack with additional tiamats.
 * Tiamat damage is considered an on-hit effect and work with abilities such as Gangplank's Parrrlay, Ezreal's Mystic Shot, or Warwick's Infinite Duress.
 * Stacking Tiamat's on Shaco can provide interesting results. Decieve and Backstab a minion next to a group of enemy champions for massive AoE damage.
 * Stacking Tiamat's on Shaco can provide interesting results. Decieve and Backstab a minion next to a group of enemy champions for massive AoE damage.

Trivia

 * Tiamat is the Sea goddess in Babylonian mythology.