Its not at the top of the list because its so hard to cast, but its still nuts
How Do Summons Work with Counter Doublers
Also, imagine trying to attack an opponent with six mana up, a bunch of cards in hand, and three payoffs in playitd like be paralyzing, and your opponent could just keep making land drops while building up an even better defense you cant see
I actually put Snapcaster Mage on 5 and think the card is a little underplayed especially in combination with newer cards like Counterspell, DRC, Unholy Heat and also Lurrus of the Dream-Den
Blue, however, would prefer to slow down and study the situation in order to find the correct solution
The only real removal then was Wrath of God and Swords to Plowshares so the Link was a decent way of stalling things till you found a Wrath