Amnom, Blade of Sathoth

{t}, Pay X life: Deal X damage to target creature.
Pay 50 life: Deal 50 damage to target player
Whenever a creature you control dies untap
Amnom, Blade of Sathoth.

"His rage was the easiest to control; besides, he freed
my blades from the Tomb of Stars, thanks to him,
my revenge is at hand"
- ???