Arachnea, the War Queen

+1: All spider creatures you control get +2/+2 and gain haste until end of turn.
-2: Put 2 1/2 green Spider creature tokens on the battlefield with Reach. Spider creatures you control have Haste until end of turn.
-7: You get an emblem with, "Whenever a spider creature enters the battlefield, you may destroy or tap target nonland permanent."