Trading T4 Class Catalysts

SlugeinsteinSlugeinstein Member Posts: 12 ★
in General Discussion
Hi, can anyone tell me at what level can i trade tier 4 class catalys? im currently level 42 Proven, i ask cause i have 3 science T4 class catalyst in overflow but i can't sell them, and i can't rank right now any science champ, thanks in advance!
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