Zog, Triceraton Castaway

Reach, trample
When Zog enters, target creature can't block this turn.
Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Forest

Zoo Escapees

When this creature leaves the battlefield, create a Mutagen token. (It's an artifact with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")

Purple Dragon Punks

{T}: Add {R}. Spend this mana only to cast an artifact spell or to activate an ability.

Groundchuck & Dirtbag

Trample
Whenever you tap a land for mana, add {G}.

Rock Soldiers

When this creature enters, destroy up to one target noncreature artifact.

Tenderize

Target creature you control deals damage equal to its power to target creature an opponent controls.

Skateboard

When this Equipment enters, tap target permanent.
Equipped creature gets +1/+0 and has haste.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Hard-Won Jitte

Equipped creature has double strike.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Mouser Foundry

When this artifact enters or leaves the battlefield, create a 1/1 colorless Robot artifact creature token.
{4}{R}, Sacrifice this artifact: It deals 3 damage to target creature.

Ragamuffin Raptor

When this creature enters, return up to one target creature or Food card from your graveyard to your hand.

Bot Bashing Time

Bot Bashing Time deals 6 damage to target creature. If that creature would die this turn, exile it instead.

Raphael, Tough Turtle

Alliance — Whenever another creature you control enters, Raphael deals 1 damage to target opponent.

Null Group Biological Assets

During your turn, this creature has first strike.
Whenever this creature attacks, you may discard a card. If you do, draw a card.

Wingnut, Bat on the Belfry

Alliance — Whenever another creature you control enters, Wingnut gains your choice of flying, menace, or haste until end of turn.
Whenever Wingnut attacks, each other attacking creature gets +1/+0 until end of turn.

Mountain

Guac & Marshmallow Pizza

Flash
When this artifact enters, target creature gets +2/+2 until end of turn. Untap it.
{2}, {T}, Sacrifice this artifact: You gain 3 life.

Manhole Missile

Manhole Missile deals 3 damage to target creature. You may put a card from your hand on the bottom of your library. If you do, draw a card.

Michelangelo, Game Master

Disappear — At the beginning of your end step, if a permanent left the battlefield under your control this turn, put a +1/+1 counter on Michelangelo.

Primordial Pachyderm

Reach, trample
When this creature enters, you gain 2 life.

Turtle Power!

Mutant Town Musicians

Trample
Alliance — Whenever another creature you control enters, this creature gets +1/+0 until end of turn.