mtg whenever you draw a card gain 1 life Cosmos Elixir - Artifact - Cards Witch's Cauldron |B| Artifact. 1B,

Rolling Hamsphere also quickly gets a boost in power, getting +3/+3 off the first attack alone

Its clearly an answer for Flashback

This can just as easily be pitching it to play a Force of Will as it can be discarding it to a looting effect which are effects blue has in abundance

Restoration Angel Whether with Thragtusk or Kiki-Jiki, Mirror Breaker, Restoration Angel has been a protagonist of many powerful decks

Between normal versions, scroll frames, ring frames, scene cards, and so on, there's no shortage of variants and alternate arts for these cards

Here are some examples of how likely various cards are to be approved based on some informal polls I ran