Blood Researcher 1BG
Creature - Vampire Druid (C)
Whenever you gain life, put a +1/+1 counter on Blood Researcher "Dean Valentin said it's too dangerous to collect blood, but I wonder if she's just greedy."
Pestilent Cauldron 2B
Artifact (R) T, Discard a card: Create a 1/1 black and green Pest creature token with “When this creature dies, you gain 1 life.” 1, T: Each opponents mills X cards, where X is the amount of life you gained this turn. 4, T: Exile four target cards from a graveyard. Draw a card.
Restorative Burst 3GG
Return up to two target creature, land, or planeswalker cards from your graveyard to your hand. Each player gains 4 life. Exile Restorative Burst.
Multicolor Ajani's Pridemate and lifegain/graveyard combo synergies welcome you to Witherbloom Day.