Attacking, to hit (punching, elbowing, etc.): Roll 1d20, then add + STR Bonus + your level. If
the total is equal to or greater than the target AC, the hit is successful.
Damage: 1 point of damage or Strength bonus whichever is greater. DR applies.
Grappling / Wrestling: Both creatures roll d20 + Strength bonus + Level. The higher result
wins and may restrain, knock down, or hold the target.
Natural 20: Attacker may knock the target down, stagger them (lose their next action), or push
them 5 feet. DN decides.