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

Season of Growth | Enchantment | | Whenever a creature enters the battlefield under your control, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) Whenever you cast a spell that targets a creature you control, draw a card. | Randy Vargas

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

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