Chaotic confluence

Roll a D6, then reveal cards from the top of your
library until you reveal a card of the rolled type
(see below) with converted mana cost X or less:
1 - Instant | 2- Sorcery | 3 - Enchantment
4 - Creature | 5 - Artifact | 6 - Planeswalker
Once you reveal a card of the rolled type exile it
and make Y non-legendary copies of that card
where Y is the number of times that cards
converted mana cost could be added together
without exceeding X. Cast that card and its copies
then shuffle all re