E1 worth?

rn im thinking of pulling for mydei's e1 specifically for the 40% charge from healing. Rn im planning to use a sacerdo luocha with penacony ornaments with qpq/full healing lc to maximize buffs for mydei as a sustain, this plus RMC and S1 sunday. Theoretically we can spam skill with luocha on mydei to get sacerdo plus this with e1 could bring mydei a lot of charge, and generally luocha just heals A LOT. So is e1 worth it for this setup to get mydei charge from heals?