Keeper of Progenitus
Creature — Elf Druid
Whenever a player taps a Mountain, Forest, or Plains for mana, that player adds one mana of any type that land produced.
1/3
standard
future
historic
gladiator
pioneer
explorer
modern
legacy
pauper
vintage
penny
commander
brawl
alchemy
paupercommander
duel
oldschool
premodern
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