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
Whether it be through graveyard-based decks, Zombies, Vampires, or even Voltron, black has the upper hand when it comes to available deck options when comparing it to some of its mono-colored counterparts
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)
It also generates consistent value by drawing a card every turn or forcing difficult decisions in combat
BPhillipYork: This enables a whole deck around discarding and replaying, essentially giving madness to everything in your deck, though, obviously it's mayhem