Flip Flop Frog

Guard, link 2
Flip Flop Frog and creatures linked to it don't
untap during their controller's untap step.
{t}: Untap another target creature.
When this creature becomes untapped, you may
return a number of target creatures to players'
hands equal to the number of times creatures
linked to Flip Flop Frog have been untapped this
turn.