Fiendlash

Equipped creature gets +2/+0 and has reach.
Whenever equipped creature is dealt damage, it deals damage equal to its power to target player or planeswalker.
Equip {2}{R}

Commander Masters

Alchemy Horizons: Baldur's Gate

Forgotten Realms Commander

If the equipped creature isn't on the battlefield as the triggered ability resolves but it had lifelink when it left the battlefield, you will gain life.

Use the equipped creature's power as the triggered ability resolves to determine how much damage is dealt. If the equipped creature is no longer on the battlefield at that time, use its power as it last existed on the battlefield.