Otahli, overactive mind

Sunburst (This comes into play with a +1/+1
counter on it for each color of mana used to
pay its cost.)
Remove a +1/+1 counter from
Ohtali, Overactive Mind : Add 2 mana of any
2 colors to your mana pool. If both colors of
mana generated with this effect are used to
cast a spell this turn, put 2 +1/+1 counters on
another creature you control.