Derek, Shaman of Conquest

Hexproof from Instants

Creatures you control with 1 toughness, have
Trample, First Strike, and Prowess

Whenever Derek, Shaman of Conquest attacks, you
may exile a creature card from a graveyard. If you do, Create X, 2/1 Green and Red elemental creature
token with Haste and "Sacrifice this creature at the beginning of the next end step," Where X is the
exiled creature's mana value