Dovin, Hand of Control

Oracle Text
Artifact, instant, and sorcery spells your opponents cast cost
more to cast.-1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.
Artifact, instant, and sorcery spells your opponents cast cost
more to cast.-1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.
This card will be absolutely monstrous in a bant proliferate deck that can use this ability with flux channeler and counterspells to neutralize threats until they can ult teferi. Every counterspell you play with these two cards on the board gives you another turn where you shutdown a key permanent on their board.
jeez how many cost increaisng effects are there now? 3?