Notes & Combos
Did you know "Dark Armed Dragon" is in fact an "Armed Dragon" monster and thus "Ojamatch" can search it?
The goal of the deck is to take advantage of that along with a Knightmare and "Junk Synchron" package to load up the grave with exactly 3 dark monsters to drop all copies of "Dark Armed Dragon" in hand for an OTK.
Going first the deck often wants to special summon "Knightmare Mermaid" and use its effect to special summon "Knightmare Corruptor Iblee." If Iblee was used to make Mermaid then give that one to the opponent. If not, depending on what the hand is you can either make a second Mermaid with Iblee to get it on the opponent's board or make either a co-linked "Knightmare Cerberus" or a "Knightmare Phoenix" under Mermaid.
"Junk Synchon" helps manage the number of dark monsters in grave and can revive Iblee with its effects negated to potentially give back to the opponent after link or synchro summoning.
Dark Hole is there to have an out "World Legacy's Secret" that isn't give the opponent Iblee and later in the turn summoning "Dark Armed Dragon" in that column so they can't negate Dark Armed Dragon's effect.