But there are questions, namely, how does it work with:
1) creatures with cleave (zealots)
2) griffin abilities (heavenly strike and that flyby...)
3) knights under haste (will the second attack also have a bonus from haste, or not?)
Well, something like that. I suspect that in case 1, it will simply add another attack, in case 2, it won't work, and in case 3, there won't be a bonus, but it's still interesting!