Just made my first deck the other day and I'm looking for some help to improve it. Any advice is appreciated, I'm just getting into MTG after playing it all of once in middle school and a friend making a white deck for me.

I have my eye on adding a few other cards (like Azusa, Lost but Seeking and Omnath) but adding those would mean it becomes a Modern deck and I'd like to keep it as a standard so I can use it for FNM events in my area.