Olspeth, nit rerant

+13: put a 2/0 colourless meme creature onto the battlefield with "creatures you control have +0/+1"
-9: add x mana to your mana pool, where x is the amount of times you want to
-18: exile up to 3 target libraries, you get an emblem with "you may cast nonland cards from exile without paying their mana costs"