Grimclaw Tigrex

Haste, Vigilance,

Whenever Grimclaw Tigrex enters the battlefield you may target a creature. If you do, Grimclaw Tigrex fights that creature.

Tigrex Deviant {1}{b/r} (If you control Tigrex for 3 consecutive turns, you may cast Grimclaw Tigrex for its Deviant cost instead).