Is it worth grinding TFT?

Does reaching gold in TFT give you another chroma for the Victorious skin, or anything that can be used in normal League? The gamemode feels really boring to me, went 1st, 3rd, 8th, 1st, 1st in promos, but I just don't feel the need to climb, even though I have 60% win ratio. If the season rewards are going to be Victorious Little Legends, then I'll just pass. But does anyone know what type of rewards there will be, and whether it's worth climbing?
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