If your opponents can't deal with Evasive characters, they can exert themselves to draw cards and gain lore with no fear of retaliation aside from outright removal
Trading it off after ramping is an easy 2-for-1, but if you dont you can still collect your 2-for-1 anyways with chapter III
Since the error occurred in the entire Revised print run, theyre relatively inexpensive in the grand scheme of things
When transformed, in addition to providing +1/+0 and haste to a creature at the beginning of each combat, that creature gains an additional +1/+0 and trample, providing additional damage and evasion
One other major incentive is that the artwork for these rarer variant cards is exceptional, with artists from the TCG coming up with brand-new illustrations that make them feel all the more exciting
Faster decks might want to consider other options before selecting Brainstorm, but other decks may find it preferable for exactly all these reasons