We've trained our system on graded MTG cards from Alpha to modern sets
There are a couple of ways to construct this: either with Rat Colony or Relentless Rats
Auctioneers, Its Employees, Consignors, Agents nor Assigns shall be responsible for the correctness, authenticity, provenance, attribution, condition or any other terms used to describe the Property
With Theros block in the mix, just about every permanent type could be regrown if Estrid is left unchecked, and I know my playgroup wont passively let that happen
Released in 2023 as part of the Wilds of Eldraine set, the 2-cost Artifact allows players to exile any card from their graveyards and if its a creature card, for so long as the specifically used copy of Agathas Cauldron remains on the field, any abilities that creature had will be applied to all creatures with a +1/+1 counter under the players control