Would I be considered crazy to only take a level 1 dip in swiftblade?

[Masakan]

Considering I wanna spend the rest of my level 10-20 career as a heart-warder from faiths and pantheons, but I really want the added mobility that spring attack provides but not much else from it.

Not just else to add just would I be ok with a level 1 dip or standard 3 dip?

[rockdeworld]

Considering you want (1) to be a heartwarder, and (2) added mobility, I would say that a swiftblade dip is not for you.

Heartwarders get worse if you give up spellcasting levels, and swiftblade 1 does.

Spring attack doesn't really grant added mobility, unless you have pounce, high speed, and are using a melee weapon. I doubt you can do those and cast haste (but if you can, then by all means go for it), so that spring attack isn't really good for you.

Instead, I'd consider an Anklet of Translocation, the knight's move spell, or the Dimension Jumper spell + a belt of battle.