mtg draw card opponent loses life Barbed Servitor (398) – Axion Now (Each opponent puts the top two cards of their library into their graveyard.) MTGNexus - Dire Sacrifice

Blue-Red Delver quickly became the tier zero deck in Modern thanks to the card advantage that Treasure Cruise offered, and within a few months, the spell had to be banned in Modern and in Legacy and eventually restricted in Vintage as well

Companions did not take up a slot of the 99, thus it would have been an auto-include in any deck that would have been able to run it, though this was spotted by Wizards before the release of Ikoria and hence received a day 0 ban

A lot of the times, you will actually be sacrificing your creatures to trigger specific effects

You can see him discuss the list in this deck tech from the Invitational

Heres hoping he sticks

Sorcery Tutor (CTRL to add secondary) Maybeboard Bloodchief Ascension At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on this enchantment