To anyone saying this isn't a Limited bomb because it's a rare: So by that line of thought, Konda, the Dragons, and all the other crazy-strong Limited rares in CHK aren't bombs. Oh yeah, I guess you're right. [/sarcasm]
Limited bombs tend to be rares, because they're strong enough to be bombs. This will be a limited bomb because Limited is slow enough for this to matter, and when this starts to matter, it becomes downright awesome.
It's not a bomb because it's far too slow and doesn't do enough. You're paying an initial investment of NINE MANA to make ONE PERMAMENT indestructible, which really won't do much towards helping you win. You'd be much better off casting creatures or removal with that nine mana. It's not a bomb, and on further thought, I don't think I'd even play it if I opened it in sealed.
It's not a bomb because it's far too slow and doesn't do enough. You're paying an initial investment of NINE MANA to make ONE PERMAMENT indestructible, which really won't do much towards helping you win. You'd be much better off casting creatures or removal with that nine mana. It's not a bomb, and on further thought, I don't think I'd even play it if I opened it in sealed.