Ghired, Mirror of the Wilds is just one example but theres others that do similar things, like The Jolly Balloon Man or Brudiclad, Telchor Engineer
(A copy of a permanent spell becomes a token.) Triggered abilities use the word "when," "whenever," or "at." They're often written as "[Trigger condition], [effect]." Some keyword abilities are triggered abilities and will have "when," "whenever," or "at the beginning of" in their reminder text
Put the revealed cards on the bottom of your library in any order
It slows down creature onslaughts and buys you time to set up
I then edge glued the two pieces together into a small panel (using my small panel gluing jig clampy thing which probably needs a better name)
My focus in the week playing the game was to figure out the best budget deck to build to the best way to farm gold and cards