For Challenge # 100 for the Community Set. There aren't any Sirens that I can think of in that set, yet, and the set could use some rares, so I pulled this one together. Since the set monkeys with flying mechanic, I also figured this would need to pull the wings off of creatures for it to be effecient. Also, the Community Set has a strong 'black likes fortifications' theme, so I figured the idea of the Siren dragging you into black's fortifications made sense.

But, now that I think of it, that's 3 separate off-color abilities all for the sake of flavor and set specific needs. That's quite a leap, even for me.

Heh. It read okay, and then I read your comment about all the abilities being out-of-colour and I realised "wow, what was I thinking?" The individual mechanics are all reasonable ideas for the set, though. "Loses flying" is normally green, but I think blue could do it, and black could do "loses all abilities". "Attacks this turn if able" is blue or red, I think. First strike when blocking is white, stretchable into red or black if there's need and justification. (However granting it to multiple creatures is a recipe for huge ground stalls.)

So putting that together: I think it's a great idea for a couple of monocolour cards in that set to be able to remove flying. One green, and one blue or black. So since sirens can be blue, how about removing the ground-stalling first strike and putting the rest of this card in blue?

It's reasonable enough, but the community set was supposed to be broken into different planes that didn't interact with each other. Blue sirens would probably go against the set's themes. That said, the first half makes sense in set, and doesn't need to be on a siren necessary, while the second half is... really weird for black... but kind of out there anyway, so if it was matched with another ability on a black siren, it would probably be fine.

So consider this card as two different cards. I'll end up breaking down tomorrow.

What were the blue creature types? I don't recall siren as going against them.

It doesn't. It's just that Sirens are from Greek mythology. It doesn't reinforce the themes if it doesn't end up in evil Greek Mythos land. Not a big faux pas, but it's an easy one to avoid. Actually, it would normally give us a chance to be creative... I was thinking of changing this into an 'Octopus Faerie'. A pity that "Target creature loses flying and must attack" makes more sense in Red, when you think about it.