I was a bit surprised by quite how effective the Grey Merchant is, initially intending it to reside in the C cube only to come out for quirky decks but it seems comfortably powerful enough for a main cube slot
Though the very first Dinosaur card debuted alongside Magic s first set (Fungusaur in Alpha ), many Dino cards were not immediately given the creature type save for Ice Age s Pygmy Allosaurus and the type was later removed in favor of Lizard or Lizard Beast. Then, enter the Ixalan block, which brought back the type from the dead and provided myriad kindred synergies that made Dinosaur decks a viable and deeply enjoyable strategy, especially in Commander
There are six different kinds of Trainers (Professor Oak, Item, Supporter, Stadium, Energy Removal, and Switch)
Since starting this list we have an Eldrazi Boar spoiled that also looks set to take a seat in this top ten
The aesthetic decision to proxy might also come into play when trying to achieve a certain theme or style for a deck
Remember, Ursula doesnt do anything unless it benefits her, so the added bonus of turning your opponent's lost lore into drawn cards is a special treat for being so evil