Ratchet, Field Medic Ratchet, Field Medic is a great card to add to well, robot decks (more on the distinction between robot subtype and robot decks later)
This is a cheap artifact that can trade up and do some efficient stationing, but it's kind of all in on those things, and I don't love it
This means a card may be cast from the hand with either face up, and the player must stick with the chosen side
You just get so much for one mana here, and despite the vulnerabilities of attaching your card draw to a creature, this card can hang all the way to Vintage Cube, with the ability to buyback Time Walk once Tamiyo transforms being an absolute boon as the card scales to the highest-power environments
Felidar Sovereign checks your life total at the beginning of your upkeep, and if its forty or more, then you win the game
3 Blastoise (PA 029) Available Between December 31 and January 14 All of the cards that have been available through drop events are rare just by virtue of their time-limited availability, although Blastoise is quite probably the rarest of the bunch