Commanders like Kalamax, the Stormsire and Parnesse, the Subtle Brush only care about a spell being copied, while the magecraft mechanic and Ral, Storm Conduit care about both copying and casting a spell, and thus have a wider application
Time Spiral Market Price: $101.05 The first of a whopping six cards found herein that have a median market price over $100, Time Spiral is an iconic card that was meant to be a watered-down version of one of the Power Nine, Timetwister
Let's look at them in color identity order
Destroy target permanent is an effect that can be used to destroy any permanent, including lands
Much of this class's power comes from Food production, which not only fuels the third level but also turbo-charges Cauldron Familiar