Core Set 2020

Barkhide Troll | Creature | Troll | Barkhide Troll enters the battlefield with a +1/+1 counter on it. {1}, Remove a +1/+1 counter from Barkhide Troll: Barkhide Troll gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.) | Grzegorz Rutkowski

Howling Giant | Creature | Giant Druid | Reach (This creature can block creatures with flying.) When Howling Giant enters the battlefield, create two 2/2 green Wolf creature tokens. | Grzegorz Rutkowski

Loaming Shaman | Creature | Centaur Shaman | When Loaming Shaman enters the battlefield, target player shuffles any number of target cards from their graveyard into their library. | Carl Critchlow

Overgrowth Elemental | Creature | Elemental | When Overgrowth Elemental enters the battlefield, put a +1/+1 counter on another target Elemental you control. Whenever another creature you control dies, you gain 1 life. If that creature was an Elemental, put a +1/+1 counter on Overgrowth Elemental. | Mathias Kollros

Thrashing Brontodon | Creature | Dinosaur | {1}, Sacrifice Thrashing Brontodon: Destroy target artifact or enchantment. | Jakub Kasper

Woodland Champion | Creature | Elf Scout | Whenever one or more tokens enter the battlefield under your control, put that many +1/+1 counters on Woodland Champion. | Randy Vargas

Ironroot Warlord | Creature | Treefolk Soldier | Ironroot Warlord's power is equal to the number of creatures you control. {3}{G}{W}: Create a 1/1 white Soldier creature token. | Filip Burburan

Risen Reef | Creature | Elemental | Whenever Risen Reef or another Elemental enters the battlefield under your control, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand. | Johan Grenier

Creeping Trailblazer | Creature | Elemental | Other Elementals you control get +1/+0. {2}{R}{G}: Creeping Trailblazer gets +1/+1 until end of turn for each Elemental you control. | Johan Grenier