in my turn i played {Mogg Fanatic} or {Putrid Imp} then it cannot attack or use ability unless it has haste right? then im done, in my opponents turn, can i use the ability? or do i really have to wait for my turn again? thanks
Only creatures that need to tap or in the rare case untap to use abilities cannot use their abilities because of summoning sickness.
302.6 A creature's activated ability with the tap symbol or the untap symbol in its activation cost can't be activated unless the creature has been under its controller's control continuously since his or her most recent turn began. A creature can't attack unless it has been under its controller's control continuously since his or her most recent turn began. This rule is informally called the "summoning sickness" rule.
You can use those abilities on the turn they are summoned. Reason: those abilities do not use the tap symbol. I'll see if I can find the ruling.
602.5a A creature's activated ability with the tap symbol () or the untap symbol () in its activation cost can't be activated unless the creature has been under its controller's control since the start of his or her most recent turn. Ignore this rule for creatures with haste (see rule 702.10).
thanks thanks :)