Extract out effect commands

src/constants/duel_constants.asm

@@ -227,6 +227,7 @@ DEF EFFECTCMDTYPE_AI_SELECTION             EQU $08
 DEF EFFECTCMDTYPE_AI_SWITCH_DEFENDING_PKMN EQU $0a
 DEF EFFECTCMDTYPE_PKMN_POWER_TRIGGER       EQU $07
 DEF EFFECTCMDTYPE_AI                       EQU $09
+DEF EFFECTCMDTYPE_UNK_11                   EQU $0b
 
 ; wDamageEffectiveness constants
 DEF WEAKNESS   EQU 1

src/home/effect_commands.asm

@@ -50,7 +50,7 @@ CheckMatchingCommand::
 .not_null_pointer
 	ldh a, [hBankROM]
 	push af
-	ld a, $16 ; BANK(EffectCommands)
+	ld a, BANK(EffectCommands)
 	call BankswitchROM
 	; store the bank number of command functions in wEffectFunctionsBank
 	ld a, [hli]

src/layout.link

@@ -66,6 +66,8 @@ ROMX $12
 	"Bank 12"
 ROMX $13
 	"Bank 13"
+ROMX $16
+	"Bank 16"
 ROMX $17
 	"Bank 17"
 ROMX $18

src/main.asm

@@ -61,6 +61,9 @@ INCLUDE "engine/bank12.asm"
 SECTION "Bank 13", ROMX
 INCLUDE "engine/bank13.asm"
 
+SECTION "Bank 16", ROMX
+INCLUDE "engine/bank16.asm"
+
 SECTION "Bank 17", ROMX
 INCLUDE "data/card_pointers.asm"
 INCLUDE "data/cards1.asm"