User blog comment:Nidhogg101/A Treatise on an Extinct Facet of League/@comment-3466579-20140126132512/@comment-5969046-20140126200939

^ Sounds pretty right. Just be aware of the fact that unorthodox =/= trolling on purpose (but the OP means that too).

Coop vs AI is not a really good mean to test things out, but you could consider custom games where you are alone vs 5 bots. Even if those bots are really dumb, they will eventually push and punish you if your build / playstyle sucks. Actually I find that training 1v5s im custom games are a pretty good way to get the baselines of your new champions.