Wulfric, Savior of Faerun

When Wulfric attacks, if you have a full party (Cleric,Wizard, Warrior, Rogue), roll a D20:
1: Creatures you control get -1/-1.
2-10: Creatures you control get +1/+0.
11-19: Creatures you control get +1/+1 and
gain first strike.
20: Creatures you control gain double strike and indestructible.
Choose a Background and Class.