Defiler of Vigor [Dominaria United Prerelease Promos] Elf Shaman [Class Bonus] On Champion Hit:

[Class Bonus] On Champion Hit: You may sacrifice Gawain

put a +1/+1 counter on that creature and it gains lifelink until end of turn

but it is close enough

(A player can concede the game at any time

then discard a card

Defiler of Vigor [Dominaria United Prerelease Promos] Elf Shaman [Class Bonus] On Champion Hit:Set: Dominaria United Prerelease Promos Type: Creature Phyrexian Wurm Rarity: Rare Cost: {3}{G}{G} Trample As an additional cost to cast green permanent spells, you may pay 2 life. Those spells cost {G} less to cast if you paid life this way. This effect reduces only the amount of green mana you pay. Whenever you cast a green permanent spell, put a +1 +1 counter on each creature you control.