Ravnica Allegiance

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

Bolrac-Clan Crusher | Creature | Ogre Warrior | {T}, Remove a +1/+1 counter from a creature you control: Bolrac-Clan Crusher deals 2 damage to any target. | Craig J Spearing

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