Red playtest cards

Red is generally considered the best color in Onslaught sealed deck and draft play right now. So what did the red cards look like when development was playing sealed deck with them? They were still pretty good, actually.

Here are four cards pulled from the playtest files. Each changed a little before it was printed. See if you can figure out what's different. Click on each one to see the real card.

Fever Charm
Solar Blast

Spurred Wolverine
Goblin Machinist