Sparky, Thunder Scourge

: At the beginning of combat on your turn, all creatures you control get +x/+x until end of turn.
0: Until end of turn whenever a creature dies put a loyalty counter on Sparky, Thunder Scourge and gain 1 life.
-7: Gain X life. Deal X damage to up to three targets. Scry X cards. Make X 1/1 Spark creature tokens. Your creatures gain flying until end of turn.