Issues
So recently I've played a user who had plants at levels my plants can't reach. My plants seem to max out at level 10 while this users plants are way beyond that.
Also I need to know, have you guys created more stages After modern day. If so I don't have access to those stages and would love to play them.
Another thing I've bought arena gauntlets a few times before I realized that I wasn't receiving them to keep playing in the tournament. Can you please fix that.
Lastly I remember having this launching heart plant that I noticed isn't visible anymore. Are there any other plants that aren't visible to achieve currently?
Firstly, you are not playing against another player, but a recording of a match and sometimes are matched against a far stronger or weaker opponent's recording.
There isn't anything beyond Modern Day, but they keep teasing us with circus themed zombies, so that might happen.
You need to talk to EA HELP CENTER about your missing gauntlets and the missing plant is probably Blooming Heart, a seasonal plant that is usually available around valentines day.
The ultra high plant levels you encountered are beyond the normal levelling system, some years ago they created another supplemental levelling system called mastery that goes up to m200 that increases damage or toughens plants and adds a chance to boost up to 20% (m200).
This link should explain it all.
Some plants imho should not be taken into mastery such as ultomato, spikerock, iceweed and spikeweed.