A few compounding factors: Commander became a year-round product line (introducing new legendary cards with every release), Secret Lairs launched in 2019 as a direct-to-consumer channel with no fixed release schedule, and Universes Beyond brought licensed crossovers that each contribute new-to-Magic designs
Asmor was called a "wizard" specifically in the short story, which was fortuitous as we have a smattering of cards for Wizards tribal in the set
III Until end of turn, another target creature you control gains trample and gets +X/+X, where X is the number of lands you control
From new Edge of Eternities spoilers to a massive Commander rules change, MagicCon: Las Vegas really pulled out the stops this year.
How To Play The Deck An Avacyn, Angel of Hope deck is all about flooding the battlefield with Angels while destroying everything your opponents control
It wasn't until Pacifism that Wizards finally made the effect really functional, and not merely functional, but so effective in older formats that it found a place in the sideboard of Gabriel Nassif's 2004 World Championship deck from GP San Francisco