2 Augment Mission Super Easy Mode - No Yasuo
I tried the 4 yas 1 malph comp for days and the problem I ran into was we never had people who were all competent at yasuo enough to pull their weight, avoid shit on the ground and do damage. People would dash into lava, miss Qs, miss tornadoes or just spam R whenever it's up rather than chaining it or followup to Malphite ult, or people who cant play Malphite by ulting 3 units, ulting entire packs across the map or clipping terrain to ult nothing :O
Easiest by far is 4 Jinx. No timing or real planning required: https://www.reddit.com/r/leagueoflegends/comments/9fyieh/guide_on_how_to_complete_the_universal_legends/
3 Jinx just cover the map in ults while the last on hit Jinx just melts the boss when you chain trap him. Cleared it on the first try with this and enemy spawn types dont matter at all whereas some are awful for Yasuo (velkoz and kogs).
3rd map especially is a joke when you can ult the back plants from the start, run to the end then ult all the way down to the starting point to melt everything that spawns behind you. 2nd map you can just sit on one side and clear the entire map with ults and just trap the chokepoints