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
Cards that are tapped do not untap until that players next untap step
It has a lot of synergy
Mystery Booster and Commander Legends are both looking to shake up the Commander scene with reprints this year, but I just hope its enough
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
Though the new cards are currently whats carrying the price of the deck, the reprints here are also very good