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
The worst part is, you know it's coming, but you can't do anything about it
You see a similar trend in the choice of Lefou Instigator over Shield of Virtue
Creatures (26) 4 Llanowar Elves 3 Doomed Dissenter 2 Thrashing Brontodon 1 Ravenous Chupacabra 1 World Shaper 1 Multani, Yavimaya's Avatar 1 Bone Dragon 4 Stitcher's Supplier 1 Izoni, Thousand-Eyed 1 Golgari Findbroker 4 Glowspore Shaman 1 Kraul Harpooner 2 Plaguecrafter Planeswalkers (3) Lands (24) Spells (7) The early game here is designed to get some bodies onto the battlefield that your opponent wont want to kill and that youll be happy to sacrifice to enable your Journey to Eternity / Vicious Offering / Vraska, Golgari Queen follow-up
They were using several card catalogs to hold Magic cards, and it seemed like a brilliant solution
What makes Japanese Pokmon sets special compared to English releases