Thalia and The Gitrog Monster

Haste Celebration — As long as two or more nonland permanents entered the battlefield under your control this turn, Goddric is a Dragon with base power and toughness 4/4, flying, and "R: Dragons you control get +1/+0 until end of turn." (He loses all other creature types.)

Your opponents can't cast spells with even mana values. (Zero is even.) Your opponents can't block with creatures with even mana values.

As an additional cost to cast this spell, discard a card or pay 3 life. Destroy target creature or planeswalker.

Destroy target creature or enchantment.

Sacrifice a creature: This enchantment deals 1 damage to any target.

Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order. Flashback 5UU (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying When this creature enters, create a Food token. (It's an artifact with "2, T, Sacrifice this token: You gain 3 life.") 1G, T: Create a Food token. T, Sacrifice a Food: Add one mana of any color.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature enters, exile target artifact or creature an opponent controls with mana value 3 or less until this creature leaves the battlefield.