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Just throwing this one out there: you can Data Break on the turn you support with black gear, since you probably dont want Level M anymore (unless you have a plan), and breaking will pile on even more powerful effects

For Level 7 choices, the "Odd-Eyes" archetype's own Level 7 "Odd-Eyes Meteorburst Dragon" is a very good choice to Summon as it can Special Summon a Level 7 monster from the Pendulum Zone for Xyz Summon plays while locking out the opponent from using monster effects during the Battle Phase

The Armed Dragon Archetype is one that utilizes the LV mechanic and is one of the best Archetypes for it

Speed Warrior X WIND Level 2 [ Warrior / Effect ] ATK 900 DEF 400 Once per Battle Phase, if this card was Normal Summoned this turn (except during the Damage Step): You can make its ATK become double its original ATK, until the end of the Battle Phase