Squirtle

Swap Out-At upkeep, you may return this card
to your hand and put another Pokemon card
onto the battlefield by paying half its mana
cost rounded up.
{2}{u}-Evolution 1 If this creature has no counters,
put 2 +1/+1 counters on it.
This creature now has hexproof.
{4}{u}{u}-Evolution 2 If this creature has hexproof,
put 4 +1/+1 counters on it.
This creature now has doublestrike.