Build 25310536

Regeneration buff now has clear counters across multiple tower types:

- Arrow Tower: Bleeding Arrows always apply Bleed and prevent regeneration for 3 seconds, increasing by 1 second per additional skill point.
- Ice Tower: Permafrost (NEW SKILL) reduces regeneration by 50% on slowed enemies.
- Lightning Tower: Stasis Current (NEW SKILL) completely prevents regeneration while enemies are stunned.

Regeneration remains powerful, but players now have reliable ways to counter it through Arrow, Ice, and Lightning builds.