Trample Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

At the beginning of each player's upkeep, that player sacrifices an artifact of their choice.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

When Obzedat enters, target opponent loses 2 life and you gain 2 life. At the beginning of your end step, you may exile Obzedat. If you do, return it to the battlefield under its owner's control at the beginning of your next upkeep. It gains haste.

When this creature dies, return it to the battlefield tapped under its owner's control at the beginning of their next upkeep.

Protection from green (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything green.) Creatures your opponents control can't have +1/+1 counters put on them.

{G}, Sacrifice this creature: Create a 1/1 green Insect creature token with flying named Butterfly at the beginning of the next end step.

Flying, deathtouch When this creature enters, create four 1/1 green Insect creature tokens with flying and deathtouch.

Flying Whenever a creature you control without flying dies, return it to the battlefield under its owner's control with a flying counter on it.

This creature can't be blocked. Megamorph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

{T}: Add one mana of any color. If you control a creature with power 4 or greater, add two mana of any one color instead.

Companion — Your starting deck contains only cards with mana value 3 or greater and land cards. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) When Keruga enters, draw a card for each other permanent you control with mana value 3 or greater.

Nonartifact spells cost {1} more to cast.

{R}: This creature gains flying until end of turn.

This creature gets +1/+1 as long as you control a Forest. {4}{G}: Target creature gets +2/+2 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

{T}: Each player may draw a card, then each player who drew a card this way gains 1 life.

This creature can't be blocked by red creatures. When this creature enters or becomes the target of a spell or ability an opponent controls, you gain 3 life.

{R}: Exile the top card of your library. If that card is a land card, this creature gets -4/-0 until end of turn. Otherwise, this creature gets +2/+0 until end of turn.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) You may look at the top card of your library any time. You may cast noncreature spells from the top of your library. If you cast a spell this way, you may cast it as though it had flash.

This creature enters with your choice of a vigilance counter or a reach counter on it.

All Swamps are 1/1 black creatures that are still lands.