A great hero for Mech lobbies, because the hero power can be used before buying Magnetizing minions in order to grow your best Mechs already on the board (e.g. Deflect-o-Bot).
This hero power will carry over until you actually buy your next minion. For example if you activate it at the end of your turn and then again at the beginning of your next turn both attack values will be added together and increase the minion bought.
its fun with shellamental if you just keep freezing the minion and buffing every turn maybe throw a deep blue on also.