Ravnica Allegiance

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

Simic Ascendancy | Enchantment | | {1}{G}{U}: Put a +1/+1 counter on target creature you control. Whenever one or more +1/+1 counters are put on a creature you control, put that many growth counters on Simic Ascendancy. At the beginning of your upkeep, if Simic Ascendancy has twenty or more growth counters on it, you win the game. | Izzy

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

Repudiate | Instant | | Counter target activated or triggered ability. (Mana abilities can't be targeted.) | Victor Adame Minguez

Cindervines | Enchantment | | Whenever an opponent casts a noncreature spell, Cindervines deals 1 damage to that player. {1}, Sacrifice Cindervines: Destroy target artifact or enchantment. Cindervines deals 2 damage to that permanent's controller. | Mark Behm

Gruul Spellbreaker | Creature | Ogre Warrior | Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) Trample As long as it's your turn, you and Gruul Spellbreaker have hexproof. | Zoltan Boros

Nikya of the Old Ways | Legendary Creature | Centaur Druid | You can't cast noncreature spells. Whenever you tap a land for mana, add one mana of any type that land produced. | Ryan Pancoast

Thrash | Instant | | Target creature you control deals damage equal to its power to target creature or planeswalker you don't control. | Winona Nelson