So, I'm developing my own archetype, and this is my starting point. Does this seem like an OP card to anyone? Or is it too underpowered?
Scholar’s Subject Library
Once per turn, you can Special Summon one "Scholar" monster from your hand or your GY. Once per turn, you can target 1 card on the field; discard one "Scholar" card; that card is unaffected by your opponent’s card effects until the opponent's next End Phase.