In the Tinker / Welder builds I am very happy to have this as it is serving many more roles than just card quality
Key Creature Types Colors in Magic have iconic creature types, which display the mechanics and philosophy of the color
'One card for every episode' feels like a good hook for luring in collectors - but I'm not sure it was really needed
Rampant Rejuvenator On its own, Rampant Rejuvenator is a 4-mana 2/2 that ramps ahead two lands when it dies
For instance, if you make 4 tokens on turn 4, you can tap those tokens to generate two more mana and perhaps make another 2 tokens
Also, once again, in 1v1 gameplay, you yourself will be one of the 2 players, meaning your equipment, controlled and owned by you, will fall off the creature because it can't be targeted or equipped by your stuff as soon as it has protection from you, making it quite the useless sword