#304 Morph implementation doesn't work properly

[Hoani Cross]

The current implementation of the morph ability does not work properly. A face down card cast with morph sould be only a 2/2 colorless creature with a mana cost of 3. Period. But all the declared activated, continuous or triggered abilities applies while they sould not. Maybe an 'usable' tag could be used in the declaration of the abilities that would be set to be true only if the card is face up.