Mezmora, the glue element

X: add x mana. tap target X creatures, then create X X/X elemental's with haste and "this creature attacks every combat if able."
-1: Put the top card of your opponents library into exile. you may cast it as a morph card for 1 mana. morph it for 4 mana.
-8: All players Put the top 10 cards of there library into exile. you may cast Them as morphs for 1 mana. morph them all for 4 mana.