Gwen's Early Power Spikes:
1. Level 1 vs Melee champs.
2. Level 2 in general is always strong.
3. Level 6 is her BEST spike.
4. Rylais purchase happens earlier since it's cheaper than Mythics, go all-in.

Gwen's Combo Tips:
1. Always try to use both Q and E together, it's much better to combine them for guarantee Snip damage.
2. Do not spam your Ult, Gwen is about hit&run. Make sure both Q and E are either up already or up in 1 second, then Ult to slow them, close the gap with E + Auto, then Q. Repeat with each Ult whenever your Q and E are back off CD for Gwen's Max Damage Combo.

Gwen Post-laning phase:
1. Try to play the split game. You're good at dueling and winning 1v1s especially verses Tanks.
2. You're very mobile and can out-prio many other champions that can't hop over a lot of walls. Dash over walls, hit plants, jungle camps, or wards to lower your Dash cooldown, and continue doing so to rotate to objectives and fights early.
3. Gwen is an AP champion, but don't be hesitant about pushing down towers, she has insane attack speed and can crush towers if your enemy laner TPs defensively for his bot & mid laners.

That's all for now, Gwen is still very new and isn't fully mapped out in her matchups, builds, and tricks. Updates will come as more of those are figured out.