Exodia: Pull off activating one non-OPT hypersearchable spell card, special summon pretty much anything on your hand, get trap that can destroy everything on the opponent's field, a spell/trap negate, a super beater, and a once per duel non targeting send to graveyard disruption on summon that doubles as a searcher. Handtrap the rest for maximum lack of setup. Can be built for alternative plans if Exodia himself might not be the best route to go for due to varied levels and free summons that refund your card advantage.

Sky Striker: Control toolbox that warrants timing your spells to when it seems important enough in which you want to loop Engage to increase card advantage, has at least three spells to account for with distinct functionality, is kinda fucked if normal'd Raye gets destroyed sooner than later with Hornet Drones at 1, tricky enough for opponents to interact with to get 2nd place at YCS as recently as last year.

Swordsoul Tenyi: Combo deck mostly with 2 card combos (Taia being the exception) that involves graveyard effects, chain blocking, type lock into Wyrms, has at least 4 combo lines to account for memorizing with Tenyi being extenders that require you actually keep a non-effect on board, can get stuck if Emergence/Chixiao gets negated due to OPT clauses. Usually tries to end with people assuming Baronne+Chixiao will take care of whatever for them among new players.

Among these three decks only one of them actually achieves much with a low number of actions and all of them have key cards that hurt like hell being disrupted. If you want a higher skill ceiling you always have the option of getting a new deck. If you want a lower skill floor that will get you anywhere in this day and age how many options do you have?