Fizz vs Diana

Power Spikes

Strength by game phase

Passive, spells and ultimate

Moonsilver Blade (P)

Every third strike cleaves nearby enemies for an additional magic damage. After casting a spell, Diana gains Attack Speed for 5 seconds.

Cooldowns by spell rank

Level	Q	W	E	R
3	8s	15s	22s	–
6	7s	15s	22s	1m40
9	6s	13.5s	22s	1m40
11	6s	12s	22s	1m30
16	6s	9s	18s	1m20
18	6s	9s	14s	1m20

Tips to maximize your impact

Farm with your trident
Last-hit minions with Seastone Trident (W) early on: if the empowered auto kills, you get mana back and its cooldown drops.
Dodge with Playful
Save Playful (E) to dodge a key spell: you're untargetable for 0.75 seconds, then land with damage and a slow.
Throw your fish from range
Cast Chum the Waters (R) from range: the farther the fish travels before it attaches, the stronger the shark's slow and damage.
Combo before the shark
After Chum the Waters (R), chain Urchin Strike (Q) and Seastone Trident (W) while the target is slowed: the shark then bursts up under them and knocks them into the air.

How to counter and exploit weaknesses

Dodge her crescent
Dodge Crescent Strike (Q): without the mark, Lunar Rush (E) keeps its 22 to 14 second cooldown and she can't recast it.
Play hard before she hits 6
Take trades before she hits level 6: without Moonfall (R), she has no pull or slow to keep you in melee range.
Spread out from your allies
Spread out from your allies when she dives: Moonfall (R) pulls in nearby enemies and hits harder for each champion pulled.