Combo Knowledge Pool +Boromir, Warden of the Tower + Magic: the Gathering MTG

The combo involves having both Knowledge Pool and Boromir, Warden of the Tower on the battlefield. This results in your opponents being unable to cast spells from their hand or spells exiled by the Knowledge Pool. The combo functions by utilizing Boromir's ability to prevent opponents from casting spells from their hand and combining it with the effect of Knowledge Pool to exile any spells opponents try to cast, effectively locking them out of playing spells.

Legallity