Whenever Picnic Ruiner attacks while you control a creature with power 4 or greater, Picnic Ruiner gains double strike until end of turn.

Stolen Goodies 3G

Sorcery — Adventure

Distribute three +1/+1 counters among any number of target creatures you control.

Whenever this creature attacks while you control a creature with power 4 or greater, this creature gains double strike until end of turn.

Distribute three +1/+1 counters among any number of target creatures you control.