Rainbow Vale

{T}: Add one mana of any color. An opponent gains control of Rainbow Vale at the beginning of the next end step.

Spurnmage Advocate

{T}: Return two target cards from an opponent's graveyard to their hand. Destroy target attacking creature.

Phytohydra

If damage would be dealt to Phytohydra, put that many +1/+1 counters on it instead.

Soul Warden

Whenever another creature enters the battlefield, you gain 1 life.

Magus of the Vineyard

At the beginning of each player's precombat main phase, that player adds {G}{G}.

Scurry Oak

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Whenever one or more +1/+1 counters are put on Scurry Oak, you may create a 1/1 green Squirrel creature token.

Rootweaver Druid

When Rootweaver Druid enters the battlefield, each opponent may search their library for up to three basic land cards. They each put one of those cards onto the battlefield tapped under your control and the rest onto the battlefield tapped under their control. Then each player who searched their library this way shuffles.

Jailbreak

Return target permanent card in an opponent's graveyard to the battlefield under their control. When that permanent enters the battlefield, return up to one target permanent card with equal or lesser mana value from your graveyard to the battlefield.