Grassy Surge (Ability ID: 229)

In-Game Description

"Casts Grassy Terrain on entry. Lasts 8 turns."

Extended In-Game Description (280-300 chars)

Creates Grassy Terrain for 8 turns (12 with Terrain Extender) on entry. Grounded Pokemon heal 1/16 HP per turn and Grass moves gain 50% power. Ground moves like Earthquake deal normal damage in Elite Redux. Nature Power becomes Energy Ball. Overrides other active terrains.

Character count: 297

Detailed Mechanical Explanation

Grassy Surge automatically establishes Grassy Terrain when the Pokémon enters battle, providing healing and Grass-type enhancement.

Trigger Conditions

• Activates on battle entry via onEntry hook
• Uses TryChangeBattleTerrain to set terrain
• Replaces any existing terrain immediately

Terrain Duration

• Base Duration: 8 turns
• Extended Duration: 12 turns with Terrain Extender
• Counts down at end of each turn
• Can be permanent with special flags

Grassy Terrain Effects

1. Passive Healing:

   • Grounded Pokémon restore 1/16 max HP per turn
   • Healing occurs at turn end after status damage
   • Does not heal Pokémon at full HP
   • Cannot revive fainted Pokémon

2. Grass-type Power Boost:

   • Grass moves from grounded Pokémon: 1.5x power (50% boost)
   • Note: Config may reduce to 1.3x in Gen 8+ mechanics
   • Only affects grounded attackers

3. Ground-type Move Interaction:

   • Elite Redux Specific: NO damage reduction
   • Code shows UQ_4_12(1.0) modifier (100% damage)
   • Earthquake, Bulldoze, Magnitude unaffected
   • Different from mainline games (50% reduction)

4. Move Changes:

   • Nature Power: Becomes Energy Ball
   • Secret Power: May cause sleep
   • Camouflage: User becomes Grass-type
   • Grassy Glide: Gains priority in Grassy Terrain

5. Ability Interactions:

   • Grass Pelt: +50% Defense in Grassy Terrain
   • Grassy Surge users always count as grounded
   • Quark Drive: Can activate stat boosts

Grounded Pokémon Definition

Affected by terrain:

• Non-Flying types
• No Levitate ability
• Not using Magnet Rise
• Air Balloon not active

Always grounded:

• Using Roost (temporary)
• Under Gravity effect
• Hit by Smack Down

Special Mechanics

• Terrain Override: Removes Electric/Psychic/Misty Terrain
• Max Overgrowth: Sets terrain and deals damage
• Terrain Pulse: Becomes Grass-type, doubles power
• Weather Independence: Works alongside any weather

Implementation Notes

• Status flag: STATUS_FIELD_GRASSY_TERRAIN
• Script: BattleScript_GrassySurgeActivates
• Healing handled in end-turn processing
• Power boost in damage calculation