here's my deck
2x dragon mastery 1x darkworld shackles 2x dragunity brandistock 1x dragon ravine 1x cards of consonance 1x sakuretsu armor 1x mirror force 1x relive monster 2x icarus attack 1x power frame 1x relese resraint wave 1x spear dragon 2x dragunity javilin 1x dragunity tribus 2x dragunity legionnaire 1x dragunity darkspear 3x dragunity arma mystletainn 1x dragunity partisan 2x dragunity aklys 1x dragunity militum 3x dragunity primus pilus 1x dragunity arma leyvaten 2x number 39: utopia

ok u want a good dragunity deck that is fast and swarms synchro
u can start by getting rid of those 2 dragon masterys and the relieve monster thing
im not even gonna ask what dark world shackles is doing there so best get rid of it
and power frame too and get rid of release restraint wave and spear dragon
3 dragunity dux 3 dragunity phalanx (phalanx is like the most important card here -.-) and 3 cards of consonance and another super important card.... dragon ravine -.-
and 1 of each dragunity synchro monsters but for dragunity vajrayana u want 2/3 of them
what happens is dragon ravine sends phalanx to grave to activate its eff or cards of consonance send phalanx to grave then normal dux and equip the phalanx from the grave then phalanx summons itself and then sync for 6 which is vajrayana then vajrayana equip phalanx then phalanx summon itself then sync for a lv 8 synchro and other stuff
im not too familiar with the other dragunity monsters so im not gonna comment on them