{R} Incubation Druid [Ravnica Allegiance Prerelease Promos][PR RNA 131]

: 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.
{3}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)