Ravnica Allegiance

Steeple Creeper | Creature | Frog Snake | {3}{U}: Steeple Creeper gains flying until end of turn. | Svetlin Velinov

Aeromunculus | Creature | Homunculus Mutant | Flying {2}{G}{U}: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.) | Simon Dominic

Biomancer's Familiar | Creature | Mutant | Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. {T}: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it. | Izzy

Combine Guildmage | Creature | Merfolk Wizard | {1}{G}, {T}: This turn, each creature you control enters the battlefield with an additional +1/+1 counter on it. {1}{U}, {T}: Move a +1/+1 counter from target creature you control onto another target creature you control. | Yeong-Hao Han

Frilled Mystic | Creature | Elf Lizard Wizard | Flash When Frilled Mystic enters the battlefield, you may counter target spell. | Randy Vargas

Galloping Lizrog | Creature | Frog Lizard | Trample When Galloping Lizrog enters the battlefield, you may remove any number of +1/+1 counters from among creatures you control. If you do, put twice that many +1/+1 counters on Galloping Lizrog. | Lius Lasahido

Gyre Engineer | Creature | Vedalken Wizard | {T}: Add {G}{U}. | Anthony Palumbo

Hydroid Krasis | Creature | Jellyfish Hydra Beast | When you cast this spell, you gain half X life and draw half X cards. Round down each time. Flying, trample Hydroid Krasis enters the battlefield with X +1/+1 counters on it. | Jason Felix

Prime Speaker Vannifar | Legendary Creature | Elf Ooze Wizard | {T}, Sacrifice another creature: Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put that card onto the battlefield, then shuffle. Activate only as a sorcery. | Kieran Yanner

Sharktocrab | Creature | Shark Octopus Crab | {2}{G}{U}: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.) Whenever one or more +1/+1 counters are put on Sharktocrab, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step. | Jehan Choo

Zegana, Utopian Speaker | Legendary Creature | Merfolk Wizard | When Zegana, Utopian Speaker enters the battlefield, if you control another creature with a +1/+1 counter on it, draw a card. {4}{G}{U}: Adapt 4. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.) Each creature you control with a +1/+1 counter on it has trample. | Slawomir Maniak

Scuttlegator | Creature | Crab Turtle Crocodile | Defender {6}{G/U}{G/U}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.) As long as Scuttlegator has a +1/+1 counter on it, it can attack as though it didn't have defender. | Jehan Choo

Sphinx of the Guildpact | Artifact Creature | Sphinx | Sphinx of the Guildpact is all colors. Flying Hexproof from monocolored (This creature can't be the target of monocolored spells or abilities your opponents control.) | Milivoj Ćeran