Pioneer

Whenever an opponent casts their first spell each turn, counter that spell.

Creatures you control get +2/+2 and have vigilance, trample, and indestructible.

As long as you control a Gideon planeswalker, you can't lose the game and your opponents can't win the game.

Whenever a land enters the battlefield under your control, you may draw a card.

At the beginning of your end step, create a 9/9 blue Kraken creature token.

Creatures you control get +1/+1.

At the beginning of each end step, create a 4/4 red and green Beast creature token with trample.

Islands you control have "{T}: Draw a card."

At the beginning of combat on your turn, target artifact you control becomes an artifact creature with base power and toughness 5/5.

Whenever you cast a spell, target opponent puts the top five cards of their library into their graveyard.

Whenever a creature you control deals combat damage to a player, that player loses the game.

At the beginning of your draw step, draw two additional cards. At the beginning of your end step, discard your hand.

Creatures you control get +2/+2 and have flying.

Creatures you control get +3/+3 and have trample.