Frenzy Virus

Creatures start with Stage 0, then during their controllers upkeep proceed to the next Frenzy Stage. Creatures with Frenzy Virus must randomly attack if able. Any creature without Frenzy Virus that is dealt damage by a creature with Frenzy Virus is given Frenzy Virus. Creatures with Frenzy Virus lose indestructible from all sources. Stage 0: This creature gains +1/+1. Stage 1: This creature takes, X divided by 2 damage rounded up, where X is this creatures base toughness. Stage 2: This creature takes, X divided by 2 damage rounded up, where X is this creatures base power plus base toughness. Stage 3: This creature takes, X damage, where X is this creatures base power plus base toughness. Stage 4: Transform Frenzy Virus