In some cases, it can be a card that pays the cost and summons a monster on the opponent's field as material when certain conditions are met, such as Albus' Nakyun
The strategy for victory with Lyrilusc Tri-Brigade relies heavily on accessing your versatile Lyrilusc XYZ monsters (which can be potentially built upon with Divine Arsenal AA-Zeus - Sky Thunder ), complimenting this with the various Tri-Brigade Link monsters that can be summoned to your Extra Monster Zone
Dullahan can halve the attack of a monster to make it more vulnerable to Socuteboss effect, meaning you can potentially destroy a monster with up to 5600 ATK using Socuteboss effect
He was stripped of his Dual, which was his most appealing point, but in exchange, he gained three new powers: (1) loose summoning conditions, (2) excellent removal, and (3) interfering with monster effects
Focused) Credit to Snake-Eye T.G