Can also tank Sejuani 3. Tank whoever you can hit first. Can also play 4 Vanguard version with Elise. Sivir takes leftover utility / AD items (red buff highly impractical so oftentimes you play Morello). Take Turtle Primal buff. +1 or 2 tiers with radiant items (especially radiant Guinsoo).

Stage 2: Slam Rageblade and bow items on Caitlyn for a winstreak. BIS Caitlyn is often hard to get so you can also slam items like Gunblade or Giant Slayer.

Stage 3: Level to 6 and roll for 4 Juggernaut + 2 Hunter. Ideally upgrade Caitlyn 2 and 2 cost Juggernaut then econ up -> slow roll above 50g for 3* units.

Stage 4: Finish your 3* ideally by mid Stage 4. Level for more Hunters. Take Turtle Primal unless you are super high rolling and can take items.