Castle Garenbrig [Throne of Eldraine Prerelease Promos] Ixalan Set: Limited Edition Beta Type:

Set: Limited Edition Beta Type: Creature — Avatar Rare Cost: {3}{G}{G}{G} As long as Gaea's Liege isn't attacking

Set: Fifth Edition Type: Creature — Elemental Rare Cost: {R}{R}{R} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

Set: Magic Player Rewards 2006 Type: Instant Rare Cost: {G} Target creature gets +3/+3 until end of turn

Which tells us the way to go

Castle Garenbrig [Throne of Eldraine Prerelease Promos] Ixalan Set: Limited Edition Beta Type:Set: Throne of Eldraine Prerelease Promos Type: Land Rarity: Rare Castle Garenbrig enters the battlefield tapped unless you control a Forest. {T}: Add {G}. {2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures. Without Garenbrig's strength, the realm would succumb to the wilds.