The main purpose of "Dragunity" decks is to have versatile and easy [[Synchro Summon]]s. "[[Dragunity Phalanx]]" is the key card here - it's a level 2 Tuner monster that Special Summons when it is equipped to a monster. Thanks to the effects of "[[Dragunity Dux]]" and "[[Dragunity Legionnaire]]", you can easily summon Level 5 or 6 Synchro Monsters - however, if you decide to Synchro Summon "[[Dragunity Knight - Vajrayana]]" with "Dux" and "Phalanx", you can use one of the deck's most powerful combos. "Vajrayana" is a Level 6 monster that can also equip a Level 3 or lower [[Dragon]]-[[Type]] "Dragunity" monster from the Graveyard. Because the "Once per turn" effect of "Phalanx" resets when it is sent to the Graveyard, if you equip "Phalanx" it can Special Summon itself again and you can [[Synchro Summon]] a Level 8 [[Synchro Monster]] - effectively turning one card in your hand into a Level 8 monster from your [[Extra Deck]] (typically "Stardust Dragon").You can also equip "Aklys" to "Vajrayana" so when you send "Aklys" to the Graveyard to double "Vajrayana" ATK you can destroy 1 card on the field. Another fast combo to summon Level 8 synchros is to use the level 6 "[[Dragunity Arma Mystletainn]]." Its effect lets you special summon it by tributing a Dragunity Monster, and then it equips a Level 3 or lower Dragon-Type Dragunity from the graveyard. Equipping Phalanx, and then summoning it with its effect can grant you an instant Stardust Dragon. However, this card has no way to be searched out because Dragon Ravine only searches level 4 or lower Dragunities and adds them to your hand, so you would rely more on simply drawing it, but with the thinning power of the deck thanks to Ravine, it shouldn't be too much of a problem.