Ryze, the Rune Mage

Ward {2}
Magecraft—Whenever you cast or copy an
instant or sorcery spell, put a page counter on
Ryze, the Rune Mage.
At the beginning of your end step, you may pay {x}. If you do, you draw that many cards. X
cannot exceed the number of page counters on
Ryze, the Rune Mage.