Mana Cannons

This enchantment enters with a doom counter on it.

Whenever you cast a spell with mana value equal to the number of doom counters on this enchantment, this enchantment deals that much damage to any target. Then put a doom counter on this enchantment.

Whenever you cast a spell from your graveyard, this enchantment deals 2 damage to any target.

Whenever a player casts a red spell, you may pay . If you do, this enchantment deals 1 damage to any target.

Whenever you cast your second spell each turn, this enchantment deals 2 damage to any target.

Whenever you cast a creature spell, this enchantment deals 1 damage to target player or planeswalker.

Whenever a player casts a spell, this enchantment deals X damage to that player, where X is twice the number of cards in all graveyards with the same name as that spell.