User blog comment:Vermillionaid/Trading Card (?)/@comment-26512661-20170426163634/@comment-25936766-20170427131009

Eh, only Synchro summon is "a bit complicated". Xyz, Pendulum, and Fusion are actually pretty simple. Xyz=X number of cards of Y level. Pendulum=set a pendulum card of X Lv, another Pendulum card of Y Lv, special summon anything between those levels.