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This version taps to generate a mana of any color and gives the next creature you cast two +1/+1 counters

This had two beneficial effects

While V.A.T.S

There are usually 5 possible cards you can get in a promo pack, so keep doing the battle challenges until you unlock them all

Of course, our discussion here is limited by the fact that Wizards doesn't release sales numbers, so perhaps Wizards has some data showing that Iconic Masters , despite the complaints from local game stores and despite boxes "selling" for $120, was a smashing success, or perhaps Wizards makes more money by keeping Masters- set boosters at $10 even if they sell poorly