The Emerald/Sapphire deck is by no means bad, and I enjoyed utilizing the various Inventors, but it does seem to require a bit more strategizing, whereas the Amber/Ruby feels more aggressive
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While that may be a slight bummer, I can assure you that there are still plenty of shenanigans to be had with this little Otter
Though most clones cost around four mana, myriad is enough to justify the premium on its casting cost, at least in a casual setting
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Lyse Hext's second ability)