What cards do you like the most and which decks will you be testing them out in
A creature card with changeling is just as much an Elf, a Dwarf, a Sliver, a Goat, a Coward, and a Zombie as it is a Shapeshifter
Known today as unlimited cards, those issued as part of the third print run had design updates intended to make the cards easier to read
Whenever Slime Against Humanity is cast, it creates a 0/0 Ooze Creature Token, then puts +1/+1 counters on it equal to the number of other Oozes in your grave or Exile, plus the number of copies of Slime Against Humanity there too
If you are lucky enough to grab a Mox or two, a sequence of turn one: Forest, Llanowar Elves
Maybe the issue here is Ephemerate