Haste, Trample

Whenever Zinogre, Thunder Wolf Wyvern attacks, you may put a charge counter on it. Then if it has three or more charge counters, remove them all. If you do, Zinogre becomes Supercharged until end of turn.

(Supercharged — Zinogre gains double strike and “Whenever this creature deals combat damage to a player, it deals that much damage to target creature or planeswalker that player controls.”)

{T}: Add {C}. Spend this mana only to cast Instant or Sorcery spells that deal damage.