Created for Challenge # 082. Somewhat similar to Urza's Science Fair Project. With enough mana, it can attack as though it had haste, have your choice of the three evasion abilities at declare blockers, and have either lifelink or double strike by the combat damage step; but that would need quite a lot of mana.

Indeed, it could have double strike, and then lifelink, I think... :)

I'd like a simpler version, but I definitely like it.

Definitely better. In fact, I appreciate the idea that this could combo with other die-rolling cards, but it seems confusing that two knights will always be in sync and can't be activated separately. If it just says "If the last number you rolled was..." does that refer only to the number rolled on dice used by this ability? Would that be clearer?

Or even, make it part of the resolution, "Roll a six-sided die. ~ loses all other abilities and gains... UEOT"?

I intended it to refer to any old dice, mainly just for the fun of it. It's got some precedent in Karplusan Minotaur which cares about all coins flipped, not just ones flipped to its ability. I agree it is possibly odd that one die roll will change all your Fickle Knights at once.

One option is to remove other abilities as you say. That works oddly in conjunction with Swiftfoot Boots, Guard Duty, and other such things, though.