Grim Reaper's Sprint
Enchantment — Aura
Morbid — This spell costs 
less to cast if a creature died this turn.
Enchant creature
When this Aura enters, untap each creature you control. If it's your main phase, there is an additional combat phase after this phase.
Enchanted creature gets +2/+2 and has haste.
イラスト：
Fallout#586レア英語