Ame, Time Detective

+1: Summon Bubba, the Doggo (only one Bubba, the Doggo can be on your field), if you already have one, give Bubba, the Goggo a +1/+1 counter
-1: Prevent all battle damage that would happend this turn
-4: Counter target spell, your permanents gain hexproof after you end your turn until the start of your next turn