While you may think that destroying the target of the mutating creature would cause the spell to fizzle, the mutate spell on the stack just goes onto the battlefield as a normal creature instead
The combo of Flying, Flash, and Deathtouch make this frosty viper a veritable removal spell with power and toughness
Kardur, Doomscourge is the only Goad-like effect that affects those creatures, so playing against a haste-happy opponent can be trouble
This is a great blocker but I wanted to focus on "Whenever a creature with flying attacks, you may draw a card." This not only includes Windreader Sphinx and our creatures, but our opponents as well
Revival Trance is almost there, but is missing some key reanimation spells to really make it shine
Lets say there are four others on the board, for a total of five Lightning Bolts