Similarly, City of Death can net you upwards of five extra copies of your most powerful token
Getting to use mana more effectively while also protecting a counter spell is solid
On pure rate I don't think Jace quite gets there, but if you're doing some serious graveyard stuff it's hard to imagine a better planeswalker for your deck
You can easily adapt your treasure package to fuel big, non-deterministic turns in a shell like Storm or Krark-Clan Ironworks where you would normally play traditional rituals and mana rocks
Pink, blue, yellow, and green variants of this much more rambunctious chocobo with their cute color-matching borders are around $1000 each currently
While players may think that there shouldnt be a ban list for this powerful format, it does make sense to me, although it could maybe do with some tweaking