IDFC Wealth LTF card is interesting option also. 2.5% cashback post 30K spends on online transaction with 1.77% Forex fee for net cash returns of 0.73%. Can be applied c2c with an existing card with 5L limit.
For my use case it seem better then Eterna - when exceeding 84k per month online spends but not as good as Vistara Explorer. Catch is that this return of 0.73% is international online only, while Eterna will give 1.39% upto 42k on International offline purchase also. Very useful for paying in hotels for room, meals and tour packages.
For me some reward without forex expense is still better than paying forex fee to get rewards. Others have different preference.
I would only consider pay forex if getting 2X - 3X returns such as as in the case of Axis Reserve or Magnus Burgundy + Samsung Infinite. That's an option for the future.