Warrgoyf

{0}: Choose one. You may activate this ability while Warrgoyf is in any zone.
-Warrgoyf's power and toughness are each equal
to the number of artifact cards among cards in all graveyards.
-Warrgoyf's power and toughness are each equal
to the number of enchantment cards among cards in all graveyards.
-Warrgoyf's power and toughness are each equal
to the number of land cards among cards in all graveyards.