Infinite mana lands you control can produce, Infinite green mana that can only be spent to activate abilities of creatures, Infinite green mana that can only be spent to cast creature spells, Infinite untap of lands you control
Activate Castle Garenbrig's second ability by paying and tapping it, adding eighteen that can only be spent to cast creature spells or to activate abilities of creatures.
Activate Wakeroot Elemental by paying , untapping Castle Garenbrig and causing it to become a 5/5 Elemental creature with haste that's still a land.
Repeat.
Component Cards
How It Works
Activate Castle Garenbrig's second ability by paying and tapping it, adding eighteen that can only be spent to cast creature spells or to activate abilities of creatures.
Activate Wakeroot Elemental by paying , untapping Castle Garenbrig and causing it to become a 5/5 Elemental creature with haste that's still a land.
Repeat.