The first nonlegendary artifact spell you cast each turn has casualty 2. (As you cast it, you may sacrifice a creature with power 2 or greater. When you do, copy it. A copy of an artifact spell becomes a token.)
Whenever you sacrifice another creature, put a +1/+1 counter on Ashad.
Ashad turns your artifact spells into two-for-ones by giving the first nonlegendary artifact each turn casualty 2, doubling cheap-to-mid artifacts while growing himself off every sacrifice. You build a board of cheap artifacts and tokens, fuel casualty and aristocrat triggers, and grind value until you overwhelm or combo off. He plays best as a Grixis artifacts/aristocrats hybrid that snowballs incremental advantage into a lethal turn.
Free value: doubling an artifact every turn compounds quickly into board and card advantage
Self-growing commander that can become a real Voltron threat purely from sac triggers
Deep color identity (Grixis) gives access to the best artifact tutors, ramp, and removal
Synergizes with token makers, treasures, and creatures that want to be sacrificed
Needs a creature with power 2+ to pay casualty, so creature-light artifact builds stall
Wants two distinct engines (artifacts + sacrifice) which can lead to inconsistent hands
Board wipes and artifact sweepers hit you especially hard
No built-in evasion or protection for Ashad himself