Biogenic Upgrade

Distribute three +1/+1 counters among one, two, or three target creatures, then double the number of +1/+1 counters on each of those creatures.

Thundering Spineback

Other Dinosaurs you control get +1/+1.
: Create a 3/3 green Dinosaur creature token with trample. (It can deal excess combat damage to the player or planeswalker it’s attacking.)

Skywatcher Adept

Level up (: Put a level counter on this. Level up only as a sorcery.)
LEVEL 1-2
2/2
Flying
LEVEL 3+
4/2
Flying

Demon of Loathing

Flying, trample
Whenever Demon of Loathing deals combat damage to a player, that player sacrifices a creature of their choice.

Biogenic Upgrade

Distribute three +1/+1 counters among one, two, or three target creatures, then double the number of +1/+1 counters on each of those creatures.

Inquisition of Kozilek

Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

Shadowmage Infiltrator

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
Whenever Shadowmage Infiltrator deals combat damage to a player, you may draw a card.

Fallen Shinobi

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Fallen Shinobi deals combat damage to a player, that player exiles the top two cards of their library. Until end of turn, you may play those cards without paying their mana costs.

Ninja’s Kunai

Equipped creature has “, , Sacrifice Ninja’s Kunai: Ninja’s Kunai deals 3 damage to any target.”
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Whiptongue Hydra

Reach
When Whiptongue Hydra enters, destroy all creatures with flying. Put a +1/+1 counter on Whiptongue Hydra for each creature destroyed this way.

Rhythm of the Wild

Creature spells you control can’t be countered.
Nontoken creatures you control have riot. (They enter with your choice of a +1/+1 counter or haste.)

Falkenrath Forebear

Flying
Falkenrath Forebear can’t block.
Whenever Falkenrath Forebear deals combat damage to a player, create a Blood token.
, Sacrifice two Blood tokens: Return Falkenrath Forebear from your graveyard to the battlefield.

Reclusive Taxidermist

Reclusive Taxidermist gets +3/+2 as long as there are four or more creature cards in your graveyard.
: Add one mana of any color.

Biogenic Upgrade

Distribute three +1/+1 counters among one, two, or three target creatures, then double the number of +1/+1 counters on each of those creatures.

Adaptive Snapjaw

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.)

Death Wind

Target creature gets -X/-X until end of turn.

Sparring Regimen

When Sparring Regimen enters, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)
Whenever you attack, put a +1/+1 counter on target attacking creature and untap it.

Unbound Flourishing

Whenever you cast a permanent spell with a mana cost that contains , double the value of X.
Whenever you cast an instant or sorcery spell or activate an ability, if that spell’s mana cost or that ability’s activation cost contains , copy that spell or ability. You may choose new targets for the copy.

Brackish Trudge

Brackish Trudge enters tapped.
: Return Brackish Trudge from your graveyard to your hand. Activate only if you gained life this turn.