While it requires you to track and remember specific things each turn in order to resolve the trigger in the end step, it does remove the need to disrupt the middle of someones turn to announce triggers in the manner required by cards such as Rhystic Study or Smothering Tithe
I tried to build U/W/R Control decks with Thoughtflare as my midgame card draw and Sphinxs Revelation as the big finish, but it turns out that was stupid
This one is a little bit better, but the card just instantly feels different
That could be a card like Davriels Withering, which perpetually gives a creature -1/-2 if that card reduces a creature to 0 toughness or less and sends it to the graveyard, for example, the debuff will remain in effect even if a player is able to bring it back to battlefield (causing it to immediately die again)
Players certainly arent complaining in November 2020, an incredible milestone was reached: a massive 5 billion duels played in Duel Links overall