Reflecting Pool

{T}: Add one mana of any type that a land you control could produce.

Mageta the Lion

{2}{W}{W}, {T}, Discard two cards: Destroy all creatures except for Mageta the Lion. Those creatures can't be regenerated.

Captain Sisay

{T}: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

Birds of Paradise

Eladamri's Call

Search your library for a creature card, reveal that card, put it into your hand, then shuffle.

Kongming, "Sleeping Dragon"

Kaysa

Loyal Retainers

Sacrifice Loyal Retainers: Return target legendary creature card from your graveyard to the battlefield. Activate only during your turn, before attackers are declared.

Juniper Order Advocate

As long as Juniper Order Advocate is untapped, green creatures you control get +1/+1.