Since multi summons guarantee a 4star card will it have higher chance of getting a 4 star servant? or is the difference negligible compared to singles?
You are most likely to get a 4 star craft essence then a servant for a multi-roll. I think technically the odds are the same. however I have had some really bad luck with singles myself where I get nothing but 3 stars I have gotten a 5 star from a single before but at the end of the day i think most people just base it off past experiences. I tend to do multi's cause I have had good luck and I only do singles if i don't have enough quarts / tickets.
Most of the time the gold card in multi rolls is a ce for me. But besides that guaranteed gold card, odds are the same.
Each individual pull is supposed to be the same odds as published, whether single or multi.
The odds of not getting a 4* card in a 10-pull is about 11%, so only about 1 out of 9 multi-rolls trigger that part of the guarantee. I have never seen a description of how that card is chosen, but my guess is that the "loot pool" discards the 3* and you roll again, so the ratio would be 5* servant: 5%, 4* servant : 15%, 5* CE: 20%, 4* CE: 60%.
The odds of the other part of the guarantee (not getting a servant) is about 0.3%, and if the same guess at an algorithm holds, the odds would be: 5* 2.3%, 4* 6.8%, 3* 90.9%.
