this deck focus on going second its not a meta deck or powerful deck but is fun to play so this one combo for FTK your opponent :
1-normal summon artillery catapult turtle use its effect to summon armed dragon thunder lv5
2-use armed dragon thunder lv5 his effect to summon lv7 by discarding another copier of lv5 then use the discarding lv5 effect to add lv7 to your hand
3-use armed dragon thunder lv7 effect how on the filed to summon lv10 by discarding the lv7 that we add to use his effect to add armed dragon white to your hand
4-special summon white by banishing to copies of lv5 from your GY then use his effect to add white veil
5-equip white whit white veil then enter the battle phase attack with white then lv10 if you make the opponent life equal or less than 2000 use white and lv10 to xyz summon Gustav max and burn his last life point left but if you cant you can go to dragoon or