This is a very interesting list. Running a stax/fort flavour along side the traditional oloro lifegain game really speaks to the defensive nature of my play style.
Some suggestions...
Kokusho - Like his Esper brothers Yosei, and Keiga really desire death. Yes sure in multiplayer you’re looking at 10+ damage and life gain in one play. But in this present list, that’s where the party
ends. There is no recursion or sac outlet listed. Kokusho is one of those cards that is “potentially” a good card given the right engines and synergy. (Usually a commander that is either a sac outlet, or a re-animator/recursion tool).
In this particular mix I really think good old
Sunscorch Regent is the dragon you’re looking for. It really integrates in both the lifegain and s-tax/fort themes you got going on here.
As is right now, 10 of 16 listed enchantments fall in
Zur the Enchanter fetching range, 4 of which are Stax tools and 3 of which are Draw Tools. Stax + Draw = Speed boost for you. It is definitely worth considering Zur as a toolbox tutor for this list.
Other then that this a pretty cool list and I give it 👍👍 for getting away from the usual 100% lifegain shennanigans.