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The triggered ability created by the chapter III ability may trigger multiple times during the turn, even though Rediscover the Way will likely no longer be on the battlefield

As you see, the possibilities are boundless

They are simple affordable and very useful for long term protection

1 Identify the set Look at the bottom left or right of the card for the small set symbol and three-letter code (such as BS, JU, FO, or more recently SVI, OBF, MEW)

Typically the kinds of deck that want coverall counterspells also want to leave mana up to be reactive, having to tap five mana in your upkeep will make the turns following a Pact of Negation deeply uncomfortable until you have lots and lots of mana