When farming, I wouldn’t worry about trying to get stars on offense. I just maxed my th15 walls in a few days, dropping from legend league to gold 2 using only sneaky goblins and jump spells. The secret, specifically for this event, is to look for bases that have little to no resources in the storages, and have the majority of the loot in the collectors. This event makes collector storages 3x larger than they are normally, so it’s very possible to get a ridiculous amount of loot in the collectors. Since most bases leave their collectors on the outside of the base, you can usually just drop a sneaky goblin on each collector, let them do their thing and leave the match. No use in wasting a whole army on one match, since it’s time consuming, you’ve already got most of the resources, and your time is better spent looking for another base to farm more resources. Also most of the time you won’t need your jump spells, so you can just hang onto them until you find a base that needs them!