Use low-cost or evasive creatures that can connect each turn safely
Elspeth, Storm Slayer Ugin, Eye of the Storms Voice of Victory Ugin, Eye of the Storms (Borderless) Elspeth, Storm Slayer (Borderless) Ugin, Eye of the Storms (Showcase) Voice of Victory (Borderless) Elspeth, Storm Slayer (Showcase) Mox Jasper (Showcase) Mox Jasper Aetherdrift Magics power-sliding set is still proving pretty popular, with the top 10 cards according to TCGPlayer data including lands, sorceries, and that all-important Aetherspark
The opponent can discard cards from their hand to add Counter Power (shown on the side of the card) to their defending unit
The depth of strategy, the variety of card interactions, and the emphasis on player choice set magic apart
Some three mana counterspells do see play in the cube, mostly this is down to the distinctly finite number of unrestricted hard counter magic you can find for two mana and not because the cards themselves are super good
Without being present in the shop at the time of the error, there would be no way to distinguish exact causes