What are some interesting deck theme ideas?

Holy order-knights in shining armour angels fairy's maybe dragons light atb. only assistant magic and trap's like (reinforcements as an ex.) (i hope your talking about yu-gi-oh....or ima sound dumb) taxing deck cards that require a payment(sacrifice pay life points etc.) human looking maybe business like nothing un-human ex. (witty phantom)" dark and light style cards that suck the life out of things (tax them) Beast of burden high level beat down style beast only any attribute few effects randomized magic and traps..under-verse mechanics machine/ machine looking dark only engineers from hell have made metal-craft ... organic dark style magic and traps infection like (germ) even if i got the wrong game ideas still count . Hope i helped.