We kept the number of cards depicting magic spells and limit breaks low, as we wanted many of our instants and sorceries to depict memorable story moments from games, and those noncreature slots were in direct competition
Though exiling four cards a turn sounds like a lot of your deck gone, lets do the math: 100 cards, minus the commander, minus your opening seven-card hand, minus four draw steps by the time you cast this, leaves 88 cards in your library
1/4 Watermark: Sultai Illustrated by Evan Shipard Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
This kind of Instant spell also lets us protect our commander from removal spells or abilities that target it + they also let us change the target of a counterspell, or any other relevant spell protecting our gameplan
That Hypnotic Specter may very well be the last thing you try to do, after all