What Not to Pair with With Haste

Avoid With Haste + Back to Basics: Back to Basics permanently seals your ultimate ability, which drastically reduces your total ability haste ceiling. Since With Haste grants movement speed based on 70% of your ability haste, losing an entire ability slot severely diminishes the movement speed bonus you would otherwise receive, making this pairing fundamentally counterproductive. Avoid With Haste + Slow and Steady: Slow and Steady sets your attack speed to a static value and prevents all attack speed bonuses, which creates a niche playstyle that does not benefit from movement speed. With Haste's movement speed scaling requires building ability haste, but this pairing forces conflicting build priorities that waste potential synergy. Avoid With Haste + Homeguard: Homeguard grants 100% bonus movement speed that is lost for 6 seconds after taking champion damage. With Haste provides permanent movement speed based on ability haste. These movement speed sources stack additively but serve different purposes, and the conditional nature of Homeguard makes this pairing redundant and low-value. Avoid With Haste + Purist - Caster: Purist - Caster converts bonus attack speed into ability haste, which could theoretically increase With Haste's movement speed. However, this requires an inefficient stat conversion chain that wastes raw stats. The indirect scaling path makes this pairing mechanically cumbersome and suboptimal compared to direct ability haste augments.