Lets Talk Value Rarity and power are one thing, but lets talk about eye-watering value
Of course some will be more expensive and some cheaper, but on average they should be less than $5 each
For six mana, Muldrotha does quite a bit where during each of your turns, you may play a land card and cast a permanent spell of each permanent type from your graveyard meaning you can really leverage your graveyard to accumulate a ton of value during games, perhaps with an Overlord of the Balemurk on the battlefield for good measure
The counters are auxiliary to its primary purpose, which is to copy spells, but counter doublers like Hardened Scales and counter manipulators like Goldberry, River-Daughter give you far more control over what you copy
Decree of Annihilation We end today's adventure with a look at Decree of Annihilation, though many of Red's older sweepers that destroy cards rather than deal damage also apply