Why people says AST is bad?

[Cynfael]

I'm not exaggerating when I say that the AST buffs should FEEL overpowered because there was only a 17% chance that they'd get the buff the wanted at the right time.

I'm with you there. The card buffs either need to be borderline brokenly powerful or reworked so that each card provides a some significant benefit that is applicable to most situations.