
It's Multi Lucky!!
Routinely generating the bless tokens you need to fuel Jacob Morrison is a bit tricky in , but with team support just the random few you're likely to encounter will make it so that you get to use Jacob Morrison 4+ times in a scenario. So, take him if you have blessed friends, maybe if you're somehow using Blessed Blade.
In solo Jacob Morrison is perfectly playable even if you use just a couple copies of Keep Faith to fuel him. Assuming that you play just the one copy of Keep Faith, that's still most likely going to be 2-3 extra uses of the Lucky! effect on top of the one he comes into play with.
I do hopefully not, need to tell you, how good a Lucky! that you get to play 4+ times, is.