25 Feb 2015
Under normal circumstances, you can play a land card exiled with Ire Shaman only if you haven't played a land yet that turn.
25 Feb 2015
If you don't play the card, it will remain exiled.
25 Feb 2015
If a face-down creature with megamorph is turned face up some other way (for example, if you manifest a card with megamorph and then pay its mana cost to turn it face up), you won't put a +1/+1 counter on it.
25 Feb 2015
Megamorph is a variant of the morph ability. You can find more information on morph on cards with morph from the Khans of Tarkir set.
25 Feb 2015
Playing the card exiled with Ire Shaman's last ability follows the normal rules for playing the card. You must pay its costs, and you must follow all applicable timing rules. For example, if the card is a creature card, you can cast that card only during your main phase while the stack is empty.
25 Feb 2015
If a face-down Ire Shaman attacks and is blocked by one creature, turning it face up won't cause it to become unblocked.
25 Feb 2015
Turning a face-down creature with megamorph face up and putting a +1/+1 counter on it is a special action. It doesn't use the stack and can't be responded to.
25 Feb 2015
The card exiled with Ire Shaman's last ability is exiled face up.