Reach, trample
Whenever Wakka deals combat damage to a player, destroy up to one target artifact that player controls and put a +1/+1 counter on Wakka.
Blitzball Captain — At the beginning of your end step, if a counter was put on Wakka this turn, put a +1/+1 counter on each other creature you control.

Flying
Whenever you cycle or discard another card, put a -1/-1 counter on each creature your opponents control.
Cycling (, Discard this card: Draw a card.)

Whenever you cast a historic spell, create a Treasure token. This ability triggers only once each turn. (Artifacts, legendaries, and Sagas are historic.)
, Sacrifice a Treasure: Goad target creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Trample
At the beginning of your upkeep, if you control a blue permanent, you may create a token that's a copy of this creature.

Each player may play an additional land on each of their turns.
At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.

Other artifact creatures you control get +2/+2.
Whenever this Vehicle attacks, return up to one target artifact card from your graveyard to the battlefield.
Crew 6

Flash (You may cast this spell any time you could cast an instant.)
Flying
You can't lose the game and your opponents can't win the game.

Menace
Whenever this creature attacks, each opponent loses X life and you gain X life, where X is the number of other Squirrels, Bats, Lizards, and Rats you control.

Trample
Enchantment spells you cast from your hand have cascade. (Whenever you cast an enchantment spell from your hand, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand.
Whenever you draw a card, each opponent loses 1 life.

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

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Sacrifice a Swamp: Regenerate target black creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

First strike
At the beginning of each opponent's end step, that player creates a 1/1 red Goblin creature token with "Creatures you control attack each combat if able."

+2: Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without paying its mana cost.
+1: Each opponent exiles two cards from their hand.
−4: Nicol Bolas deals 7 damage to target opponent, creature an opponent controls, or planeswalker an opponent controls.
−12: Exile each nonland permanent your opponents control.

Haste
Whenever a creature you control with haste attacks, create a tapped Treasure token.

Whenever you attack with this creature and/or your commander, for each opponent, create a 1/1 red Goblin creature token that's tapped and attacking that player.
Sacrifice this creature: Creature tokens you control gain indestructible until end of turn.

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When this creature enters, if was spent to cast it, this creature deals 3 damage to any target.
When this creature enters, if was spent to cast it, search your library for a land card, reveal it, put it into your hand, then shuffle. You gain 2 life.
Evoke

Copy target instant or sorcery spell. You may choose new targets for the copy.