Grand Summoning

Reveal the top X plus 1 cards of your library. You may put a creature from among them or from your hand with converted mana cost X plus 1 or less onto the battlefield. Put X plus 1 +1/+1 counters on that creature, then put all other cards revealed this way on the bottom of your library in any order.
Vazdurek magi who already excelled at conjuration spells reached even greater heights of power as the walls of reality crumbled.