Tempus, Timeshifter

{t}: Add one mana of any type that a land you control could produce.

If Tempus, Timeshifter has a +1/+1 counter on
it, add three mana of that type instead.

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