Who Wins
- You win level 2 fights with W polymorph setup allowing Vayne to proc W stacks safely while Sivir cannot E the polymorph.
- Level 6 remains favorable as your R knockup and health boost synergizes perfectly with Vayne's R invisibility for dive potential.
Synergy & Trading
- Use W polymorph when Vayne is in range to auto-attack, then E shield Vayne during the trade to maximize her damage window.
- Your E-Q combo through minions provides poke while your W can be saved for all-in setups or peeling Soraka's engage.
Wave Control/Roaming
- You can roam effectively after shoving waves since Vayne has better 1v1 potential than Sivir in short trades.
- Optimal roam timings are when Vayne has item advantages and can pressure Sivir alone, typically after first back with BF sword.
Mistakes to Avoid
- Never use W polymorph defensively unless it's a guaranteed kill setup, as wasting it gives Sivir free Q poke windows.
- Avoid using E shield preemptively in trades, as timing it during Vayne's damage window provides much more value than using it for the initial slow from E-Q.
Created on 11/22/2025
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