The Main Deck "@Ignister" monsters have at least 1 card for each different Attribute except DIVINE. There is also 1 Extra Deck "boss monster" for each Attribute that has 2300 ATK, except for "The Arrival Cyberse" with 0 ATK.
The effects of the Main Deck monsters aid in generating advantage; those that correspond with a more specific Summoning method support that method and often have Special Summoning effects, while those corresponding to a less specific Summon method focus on other methods of card advantage.
In the anime, the Extra Deck monsters require using a monster as the same Attribute as material for their Summon. Their effects are generally stronger when the player controls multiple "@Ignister" monsters, and they have a strong focus on allowing their effects to activate through successful battle.