I, too believed that Tentacool would make a Damage
Swap deck unbeatable. You could switch damage to Tentacool every turn and
never lose any energy, so long as you did not attach any to it. Then I read
the card a little more carefully: This power cannot be used the turn this card
is put into play. That means when you transfer damage to him, then use
Cowardice to scoop him up, and set him back down again you cannot use the
power again, because it's now the turn you put him in play.Just
thought I'd write in with this clarification.
Jesse Jamison