Koa'ki Meiru OTK combo deck

I'm Plat 3 on Master Duel with a similar build.
I've been playing Koa'ki Meiru for 10 years.

Basic combo: Summon Urnight, reveal Iron Core to summon Supplier, search Maximus (Urnight if Maximus is already in hand), (if monster in grave) XYZ Number 60, (if not) Link Bujin and then make Number 60, summon Urnight from GY with Number 60, reveal Iron Core to summon Tornado (save your Suppliers just in case), XYZ Dark Rebellion, put Vesp on top of Number 60, summon Maximus from hand.

Combo 2: Special summon Alpha, summon Urnight, reveal Iron Core to summon Tornado, Alpha returns Urnight to hand to return opponent's monster, Link Tri-Brigade girl, summon Urnight from hand with Tri-Brigade, summon Supplier with Urnight, XYZ Number 60, summon Urnight from GY with Number 60, reveal Iron Core to summon Supplier, search Maximus, XYZ Dark Rebellion, Vesp on top of Number 60, summon Maximus from hand.

There are many different ways to go about this combo with Summoner Monk or Tin Goldfish + Supplier in hand. The main idea is to spam Urnight 2 or even 3 times if possible. You won't always be able to end up with that exact field on the board but you will still be able to OTK. You at times can end up with Vesp, Rebellion, Bujin, and Tornado on field which is exactly 8000 while Tornado destroys ALL their special summoned monsters.

I recently was also able to create Lambda while my opponent had a monster on field ready to activate an effect, negated it with Gamma, made level 8 Synchro, summoned Maximus from hand, pop card, Link Bujin, XYZ Number 60, and comboed my way to an OTK field (1500 + 2500 + 2500 + 1700).

Left Arm Offering opens the door to adding Leviair and 2 level 3 monsters to banish your Urnight and search for Iron Core and then make the OTK combo but Left Arm Offering is just a test card for now. You can definitely remove it.

You can also add 3 or 2 Parallel Exceed and add 2 or 3 Trade-In for more combo potential + draw power.