double-doubling counters!..?

Sunburst (This creature enters with a +1/+1 counter on it for each color of mana spent to cast it.) : Double the number of +1/+1 counters on this creature.

Experiment Kraj has all activated abilities of each other creature with a +1/+1 counter on it. : Put a +1/+1 counter on target creature.

, : Double the number of each kind of counter on target permanent. ( is the untap symbol.)

Multikicker (You may pay an additional any number of times as you cast this spell.) Choose target creature, then choose another target creature for each time this spell was kicked. Put X +1/+1 counters on each of them.