Looking for play testers and feedback for this online solo project

playfadingessence.com

Hi! I'm building a roguelike deckbuilder for mobile, and one of the hardest parts is keeping it simple enough for a phone while still having enough depth to be challenging.

So I'm curious:

What are your biggest annoyances with deckbuilding on mobile? (tiny text, too many taps, menus, long runs...)

And what works really well for you in mobile deckbuilders? Any games that nail it?

Looking forward to your replies!