mtg cards like hardened scales Hardened-Scale Armor that many plus one +1/+1 counters are put on it instead. Hardened Scales (foil-etched) - Double

The exact appearance can vary by print era, but many real cards show a recognizable internal layer

Once I broke all this down, the answer seemed pretty clear: I needed to track spells being cast

Friends On The Other Side is a strong Amethyst song card to throw into an Amber/Amethyst aggro deck as well

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Its ability can net you a nice amount of card draw whenever you need it while also working as a great way to ping your opponents