cards like insurrection mtg Spreading Maybe they wanted to be on the winning side for once The Top Five Weakest Magic:

Zombies boast a variety of lords including prominent examples like Lord of the Undead for card advantage and Undead Warchief for cost reduction

Kalemne is just too slow for a Boros commander, which is typically a very fast and aggressive color pair

I don't think her winning percentages were out of line with her amount of play

Pokemon TCG Marketplace Unified Minds If your opponent's Pokmon-GX or Pokmon-EX is Knocked Out by damage from this attack, take 1 more Prize card

This cycle could be repeated at the end of an opponents turn so long as you had enough mana to pay for it, effectively creating a near-infinite source of 1/1 fliers and a ton of healing

While that deck will certainly have pulled many copies of This Town Ain't Big Enough out of circulation, by itself it isn't the main reason for this spike