Beavers, you'd want to be called if you were a twat.
Bobcats, Grizzlies are out.
Dragons, almost the same, could work.
Hogs, not flashy, so ok.
Raptors, good name, great b-claw, stupid cartoon raptor.
Scorpions, could suit us quite well, but too self ironic
T-Rex, what's the plural T-Rexi? not workable
Tarantulas, might spook arachnophobic fans.
How about "Toronto Hedgehogs"? Then Andrea's stylist could fix everyone's hair spikey. and then they could shrug their shoulders on box-outs, making rapid exhalations with the nose. Or..
everyone could just concentrate on the game..