Even if you only cast one of them, theyll make for a great creature without truly needing the other one all that badly
Eddymurk Crab looks less good, but if you can flash this in for two and then Splash Portal it before your combat phase, youve tapped down four creatures
Overall, Amethyst, Ruby, and Steel are more focused on attacking while Amber, Emerald, and Sapphire are more supportive, but each can be used to make interesting combinations and people can experiment with seeing what strategies work with their personal play style
If its a nonland card, you instead put a +1/+1 counter on the creature that explored and decide if you want to put the card in your graveyard or leave it on top of your library
Some of the stores with fewer number of sales that just do this on the level that I do wont be Google-able, and as such would be more difficult to contact if you wanted to inquire about the exact status of their more heavily worn cards
Mystery Booster and Commander Legends are both looking to shake up the Commander scene with reprints this year, but I just hope its enough
