Taric Support vs Jhin ADC Matchup

Why Taric is favored

Taric's Bastion (W) passively provides bonus armor to both himself and his carry, heavily reducing Jhin's physical burst damage. Additionally, Cosmic Radiance (R) grants invulnerability that can completely absorb Jhin's predictable execution windows on his fourth Whisper bullet and Curtain Call (R).

How to play as Taric

Aim Dazzle(E) through your Bastion(W)-linked ally across Jhin's retreat path when he steps forward; its one-second delay means you need to predict where he will move. (Unverified: no source confirms this note.)

Use Cosmic Radiance(R) early enough for its 2.5-second windup to finish as a Curtain Call(R) shot reaches nearby low-health allies. (Unverified: no source confirms this note.)

Bastion(W) increases Taric's and his linked ally's armor using a percentage of Taric's armor, reducing the physical portion of Jhin's damage.

Cosmic Radiance(R) has a 2.5-second windup, then makes Taric and nearby allies invulnerable for 2.5 seconds; it protects against Jhin's damage only when that window overlaps the shot.

Dazzle (E) radiates from both Taric and his Bastion-linked (W) ally, allowing the allied marksman to aim the stun directly at Jhin even when Taric is kept at a distance.

How to play as Jhin

When Taric's Cosmic Radiance(R) is active during Curtain Call(R), hold your next shot until its invulnerability ends or aim at an enemy outside its protection. (Unverified: no source confirms this note.)

Prioritize armor penetration items like Lord Dominik's Regards earlier in your build; flat lethality struggles against the bonus armor Taric provides to his lane partner through Bastion (W).

Sources

These notes come from LoL Wiki and r/taricmains, checked against the champions' abilities.