Caterpie

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.
{1}{g}-Evolution 1 If this creature has no counters,
put 2 +1/+1 counters on it.
{3}{g}-Evolution 2 If this creature has any counters,
add another 2 +1/+1 counters on it.
This creature now has flying.