Jecht, Reluctant Guardian / Braskas Final Aeon Rating: 8/10 Starting out as a 4/3 menace creature is a decent start
Creature, artifact, enchantment, land, Planeswalker as long as its a token, you can sacrifice it here
For example, for RNA, I had 28 of the 60 (4x15) total Mythics
"Design Decisions and Concepts in Licensed Collectible Card Games"
It reads: "[Winter Stockpile] Whenever one of your characters is banished, you may put that card from your discard into your inkwell facedown and exerted." Sitting at around $145.48 on TCGplayer right now, I can only seeing it going up in value over the next few months
This is a 2-drop mana dork that can become a massive token creator later in the game