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Core 7 pack inspirational-word Sweetie Belle (which says "Love" on her display side) has a symbol with a heart that says "25th Birthday" on her non-display side. This heart symbol has a fancy pattern on it with smaller versions of the other Core 7 symbols. So it's like a non-display side symbol. Actually all seven of the inspirational word Core 7 ponies have a version of this symbol on their non-display side. (It's just that Sweetie Belle is the unicorn.)