Ood Sphere

The two abilities pull in opposite directions, and that opposition is the plane's whole engine: one hands the whole table an acceleration tool, the other turns a shared random trigger into a directed punish. Song of the Ood gives every noncreature spell convoke, for every player, which quietly converts any wide board into a mana rock the moment its controller wants to jam an oversized sorcery or a fistful of instants, and it rewards flooding the battlefield without caring what color those creatures are. Because it applies symmetrically, the plane speeds everyone up at once; whoever has the widest board and the most spells to cast simply banks the most out of it. Red-Eye is the counterweight. When chaos ensues, you goad up to one creature per opponent and, critically, that creature can't tap for anything but attacking until your next turn, so you peel a blocker, a mana dork, or a tap-ability off each rival in one stroke. Note the scope: this is a single creature apiece, not a board lock, which is what keeps the plane's aggression political rather than oppressive. Goad is subtler than it looks here: it removes options and manufactures pressure rather than assigning it, since a goaded creature must attack someone other than its goader but its controller still chooses which of your rivals eats the swing. The plane leans on that ambiguity, pairing one forced attacker with one disabled defender per opponent while everyone shares the convoke bump.