Why does it feel like its under powered?
You most likely played against a Staff ele using a bunker build. I use that build and I can tell you now that I barely do enough damage to kill a single target. However, I have survived a 2v1 and sometimes 3v1 long enough to have my team mates come help me.
I have a question. Did they strike back? Chances are, you’re either running a tank build or they’re running a tank build. In either case, feeling like no damage is being done should be normal.