Thranduil, Sindarin Liege (Showcase) (HOB)

Other Elves you control get +1/+1.
Landfall — Whenever a land you control enters, create a 1/1 green Elf creature token.
Silvan Rally 1(G/U)(G/U)
Sorcery — Adventure
Mill four cards, then put up to two land cards from among them into your hand.