Every tap ability goes quiet across three opponents at once
Best Direct Damage Spells Payoffs Creatures The Throne of Eldraine era burn deck in Commander usually saw grumpy ol Torbran, Thane of Red Fell in the command zone, and it still works fine
Kefkas ability to wear down your opponents while helping you keep a steady supply of new cards feels extremely relevant to the current midrange meta in cEDH, although Im not sure that he will outperform Tymna the Weaver // Kraum, Ludevics Opus
Next, look at the cards effect text
Early on, cards like Thawing Glaciers were not yet known, so there was a significant advantage to be had in the mirror
Giving all basic land types is great for some decks, like domain, and some people are looking for ways to maximize this strange token