This is a difficult matchup for Diana because Garen is a natural counter to dive assassins. He out-sustains you in the jungle with and can negate your entire burst combo with a well-timed or a silence.
This is a frustrating 'stat-check' lane. Garen wins extended fights and negates your burst with his natural tankiness, while his silence prevents you from completing your combos. You cannot kill him in one rotation unless he is significantly poked down first.
Cho'Gath is a sustain-heavy tank mage who wants to ignore your poke and scale. This is a battle of attrition early where you must use your superior mobility to dodge his telegraphed CC. If you can't burst him before his first back, he becomes very difficult to kill.
This is a skill-heavy matchup that generally favors Diana because your shield and natural bulk can negate her burst. Leblanc wants to poke you with and , but you win extended trades if you can stick to her with resets.
This is a heavy favorite for Diana. Evelynn Mid lacks the waveclear and early durability to contest your push, and her combat pattern is too slow to match your burst. You win by bullying her pre-6 and using your superior wave control to prevent her from roaming.