Magery
Theme
Ritual of Subdual
4GG
Enchantment
Cumulative upkeep 2 (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
If a land is tapped for mana, it produces colorless mana instead of any other type.
Prices
TIX Nonfoil
$0.02