Eureka!

As an additional cost to cast Eureka!, sacrifice X Clue tokens. Draw Y cards, then search your library and graveyard for X cards, reveal them, and add them to your hand. Shuffle your library afterwards.
You gain Z life. Add Y mana of any color to your mana pool. Creatures you control get +Y/Y until end of turn. (Y is X times 2. Z is X times 5.)