Dragon Egg

Defender
When this creature dies, create a 2/2 red Dragon creature token with flying and "{R}: This token gets +1/+0 until end of turn."

Colossodon Yearling

Colossal Might

Target creature gets +4/+2 and gains trample until end of turn.

Mire Boa

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
{G}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Skullcrack

Players can't gain life this turn. Damage can't be prevented this turn. Skullcrack deals 3 damage to target player or planeswalker.

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Pit Fight

Target creature you control fights another target creature. (Each deals damage equal to its power to the other.)

Briarpack Alpha

Flash (You may cast this spell any time you could cast an instant.)
When this creature enters, target creature gets +2/+2 until end of turn.

Gigantiform

Kicker {4}
Enchant creature
Enchanted creature has base power and toughness 8/8 and has trample.
When this Aura enters, if it was kicked, you may search your library for a card named Gigantiform, put it onto the battlefield, then shuffle.

Ember Beast

This creature can't attack or block alone.

Ambush Viper

Runeclaw Bear

Brushstrider

Vigilance (Attacking doesn't cause this creature to tap.)

Manalith

Lightning Shrieker

Flying, trample, haste
At the beginning of the end step, this creature's owner shuffles it into their library.

Leafkin Druid

{T}: Add {G}. If you control four or more creatures, add {G}{G} instead.

Igneous Cur

{1}{R}: This creature gets +2/+0 until end of turn.

Ruination Wurm

Valley Rannet

Mountaincycling {2}, forestcycling {2} ({2}, Discard this card: Search your library for a Mountain or Forest card, reveal it, put it into your hand, then shuffle.)

Call of the Herd

Create a 3/3 green Elephant creature token.
Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)