If youre in enchantress or just not playing red, the best (and only) option is Finest Hour
You and your fellow players embark on missions that involve a lot of communication to win
No matter whether they could draw six or mill six, either way, they would gain a huge advantage in Dragon Ruler decks, as all of their summoning effects could activate from the graveyard as well as the hand.
The strongest monster he can easily summon is the 2000-ATK Patrician of Darkness (his strongest is Chakra, but he will never, ever get it out), he has all of two Spells - one is Chakra's Ritual Spell and the other has a random effect, and his monsters are a jumble with no unifying type or strategy and weak abilities
Can attack a number of times each Battle Phase, up to the number of non-Tuners used for its Synchro Summon