Incubation Druid
From March of the Machine Commander set
Incubation Druid
Creature — Elf Druid
0/2
: Add one mana of any type that a land you control could produce. If this creature has a +1/+1 counter on it, add three mana of that type instead.
: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)