Level 4 monsters ("Adin", "Ecclesia", and "Theo") share the following effects: "Cannot be destroyed by battle with a monster Special Summoned from the Extra Deck. You can only use each of the following effects of "[this card]" once per turn." and "If a monster that was Special Summoned from the Extra Deck is on the field: You can Special Summon this card from your hand." This allows them to quickly invade the field and enter Rank 4 Xyz Monsters. Examples of good generic Rank 4s include "Number S39 Utopia Supreme", "Daigusto Emeral", "Cowboy Gagaga", etc.
"Fleurdelis Dogmatik, the Knightly Army" also features a similar Summon condition and supports "Dogmatik" monsters by making them gain ATK whenever a "Dogmatik" monster declares an attack, allowing for quick victory when combined with the provided swarm. by lower Level monsters. Because its Summon condition is a Quick Effect, it can be Summoned during the opponent's turn to interrupt their game, negating the effects of one of their monsters.
"Maximus Dogmatik" and "Nexus Dogmatik" benefit from Extra Deck monsters in the Graveyard since their Summon condition involves banishing an Extra Deck monster from the Graveyard. Accumulating Extra Deck monsters is achieved with their support Spell and Trap Cards, but also with "Maximus", sending cards from the Extra Deck to the Graveyard. Because of this, it is recommended that Extra Deck monsters have effects while they are in the Graveyard. Monsters that have a decent Attribute and Type range make "Archimemeses Eschatos" and "Archimemeses Protos" good optional "boss monsters" in the Deck. "Zaborg the Mega Monarch" can also help set up the Graveyard. Since "Nexus" can be Summoned multiple times per turn, this card makes getting multiple copies of it very easy.
Due to its heavy reliance on monsters Summoned from the Extra Deck being on the field and its own inability to Summon them regularly, it is an archetype focused on going second. The opponent who does not Summon a monster from the Extra Deck can also damage the Deck. To make up for this weakness, it is recommended to have a few copies of "Instant Fusion" to easily Summon monsters from the Extra Deck (care should be taken when playing "Dogmatik Punishment", "Ecclesia Dogmatik, the Virtuous", "Maximus Dogmatik" and/or or "Servant Nadir"; as it can throw off one's own strategy if not timed correctly). If "Thousand-Eyes Limit" or "Thousand-Eyes Limit" is Summoned in this way, they can be used to Link Summon "Linkuriboh", instantly giving him a material to Summon "Maximus" and with the help of The invoked leaves cards like mechaba and more useful cards and use all the power of the new card White Zoa of Dogmatika