Ravnica Allegiance

Gravel-Hide Goblin | Creature | Goblin Shaman | {3}{G}: Gravel-Hide Goblin gets +2/+2 until end of turn. | Jonathan Kuo

Growth-Chamber Guardian | Creature | Elf Crab Warrior | {2}{G}: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.) Whenever one or more +1/+1 counters are put on Growth-Chamber Guardian, you may search your library for a card named Growth-Chamber Guardian, reveal it, put it into your hand, then shuffle. | Bram Sels

Incubation Druid | Creature | Elf Druid | {T}: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type instead. {3}{G}{G}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.) | Daniel Ljunggren

Sauroform Hybrid | Creature | Human Lizard Warrior | {4}{G}{G}: Adapt 4. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.) | Nils Hamm

Silhana Wayfinder | Creature | Elf Scout | When Silhana Wayfinder enters the battlefield, look at the top four cards of your library. You may reveal a creature or land card from among them and put it on top of your library. Put the rest on the bottom of your library in a random order. | Suzanne Helmigh

Territorial Boar | Creature | Boar | Whenever a creature with power 4 or greater enters the battlefield under your control, Territorial Boar gets +1/+1 and gains vigilance until end of turn. | Dan Scott

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

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

Clan Guildmage | Creature | Human Shaman | {1}{R}, {T}: Target creature can't block this turn. {2}{G}, {T}: Target land you control becomes a 4/4 Elemental creature with haste until end of turn. It's still a land. | Tomasz Jedruszek

Zhur-Taa Goblin | Creature | Goblin Berserker | Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) | Wayne Reynolds