As if we needed any MORE rare nymphs/cards to collect.
Although the idea seems fun, wouldn't that mean that you'd have to have some sort of 'alchemy' potion to go along with this? Every nymph is connected directly to the Alchemy Spell (Black Hole, Precognition, Liquid Shadow, Aflatoxin, etc.), but 'Other', by definition, would also require that same Alchemy potion for the Nymph to exist.
...but the problem is that the spell is derived from a shard (partially), and not to mention, the ability itself would be fairly overpowered if it was available to buy from the bazaar. It would remove the bonuses gained from Eclipse/Nightfall from any
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creature, allow cards that have been 'rewound' to be played with ease assuming they say 'Other', strengthen any form of rainbow since it only takes 1 and 1/2 rainbow towers to play the nymph itself and quint it, etc.
EDIT: Damn my grammar. >.<