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-BUWRG

All blue creatures become unblockable until end of turn.

"For a moment, there was nothing that could stop us. Nothing that could hope to bring us down. For a moment, it was like the meaning of life itself was on the tip of our tongues"

BBUUWWGGRR

Actually in my opinion it shouldn't have just that one ability because of the mana cost. Unless anyone can come up with an all color blue creature beatdown deck then it wouldn't really be playable. I say it should be an enchantment and have an ability for each color.

Blue creatures have flying.

Red creatures have haste.

Green creatures have trample.

White creatures have first strike.

Black creatures have fear.

I replaced blue's ability with flying because fear is almost unblockable anyways. And the change color at end of turn should be nixed as well.

sorceries may be played at any time you could play an instant.

[Name]Immortal swordsman

-9R