BPhillipYork: This enables a whole deck around discarding and replaying, essentially giving madness to everything in your deck, though, obviously it's mayhem
Mathemagics would primarily benefit a blue-based ramp or combo deck that can generate large amounts of mana (especially via mana doublers like **High Tide**, **Mana Flare** effects in multiplayer, or artifact ramp such as **Sol Ring**, **Mana Crypt**, and **Grim Monolith**) and is aiming to win in the same turn it casts this spell, since XXUU becomes extremely powerful once X reaches 4 or higher (drawing 16+ cards)
Lillie's Pearl 151/159 Loading
Arbok Topps Chrome Series 1 #24 ($1600) Ekans (read that backwards!) evolves into Arbok (which also kind of works if you read it backwards) at level 22 in the Pokemon video games
You can combine it with another color (or two) with the right partner
It also generates consistent value by drawing a card every turn or forcing difficult decisions in combat