Spawn of Tiamat

Hexproof, Relentless 5 - A creature with Relentless
attacks multiple times in the same combat phase
according to the associated number.
Each time Spawn of Tiamat attacks, it gains one
effect chosen from Deathtouch, Menace, Trample, Lifelink or First-strike.
As soon as the beast reared its five monstrous
heads, hope faded from the heroes and they knew it
was time to run.