Portal Mage [Wizard]: It will only mess up one creature, but that could be useful, especially if you have it attack something with indestructible or deathtouch
The good part here is that putting art stickers doesnt require tickets, so all you need is creatures and cards that throw stickers around
For Time Spiral Timeshifted, WotC opted to use a light purple color to make it clear which card was timeshifted
Ichor Wellspring ain't no proper egg in that sense (it has no built-in sacrifice ability), but assuming your deck hangs out with an entourage like Braids, Arisen Nightmare or Daretti, Scrap Savant and you can reanimate artifacts, you can draw a lot of omelets with this one
How likely are you to need your mana next turn
I've already covered the fight cards, which will be the primary way we deal with opposing creatures, but we still gotta pack artifact / enchantment / land hate, plus a board wipe or two