Courtesy of Wizards of the Coast (WotC) and MTG Goldfish, take a look at the upgraded version of a Tenth Edition classic from Core Set 2021 — Discontinuity!
If Discontinuity looks familiar, it’s probably because it shares a color, converted mana cost, and text with the card Time Stop from Tenth Edition, however, there is something that makes Discontinuity an upgrade:
As long as it’s your turn, this spell costs 2UU less to cast.
Meeting this criteria means you can cast Discontinuity for only 1U — a sizable discount to be sure — and although there aren’t many scenarios where you’d want to end your turn early, it can stop an opponent from making a big play at the end of your turn.
End the turn.
Obviously this effect is quite strong, as it acts similar to an instant-speed Time Walk-esque effect when cast on your opponent’s upkeep. In many scenarios however, you’ll probably want to wait for your opponent to cast a spell before using it, as you get to end their turn and also make them waste a card.
Read the original article from MTG Goldfish.