Game 1:
Teammate harassment - Zyra (Minor offense)
Inciting a report - Kled (Flagged offense)
unsportsmanlike - muting majority of teammates (Minor offense)
"Re%%%ded" - inappropriate language used, (Major offense) Strike 1 <---- Future monitoring
Game 2:
"hot%%%%%" - inappropriate language used, (Major offense) Strike 2 <---- Future monitoring
unnecessary taunting towards opponent (ziggs) Unsportsmanlike - Minor Offense
Grieving "I'm done" - Minor offense, but multiple counts this game
Harassment, again, Minor offense, repeated offense
Game 3:
Harassment, Repeated offense
inciting a report, repeated offense
Summary:
Multiple counts of harassment towards teammates, inciting reports and Use of inappropriate language.
Minor punishment: 14 day ban.
There are many different levels of Toxicity, from "I'm sooo drunk~" to "STFU ass%%%%"
But Riot doesn't differentiate who, why or what reason, making a game intolerable with bad behavior is considered Toxic.
Keep this in mind at least, this is Strike 1 for you, after your ban is removed you are still flagged for future toxicity.
Any other behaviors that can get you flagged (AFK, Grieving, Harassment etc), could give you a strike 2 - suspension or worse Straight to Strike 3 - Permanent ban.
You failed to realize you are wrong, and that's okay, but now that you have been warned, you have no more excuses to your future behavior.
If you don't want to be Toxic, don't behave as if you are.
That's all. Good luck.