Talk:Mesa/@comment-24.248.16.99-20180606130414/@comment-25254386-20180606174658

Well, yeah. If you just have on then only the casting cost is going to be affected; the energy drain will remain the same since you're taking away as much duration as efficiency added on. Once you put on it offsets FE's nagative Duration a bit, so now you have 160% Eff and 70% Dur. Which in turn means the energy drain will drop to ~8.6/s