Move-unique effect commands consistently go in engine/battle/move_effects/

engine/battle/move_effects/magnitude.asm

@@ -0,0 +1,29 @@
+BattleCommand_GetMagnitude: ; 37991
+; getmagnitude
+
+	push bc
+	call BattleRandom
+	ld b, a
+	ld hl, MagnitudePower
+.loop
+	ld a, [hli]
+	cp b
+	jr nc, .ok
+	inc hl
+	inc hl
+	jr .loop
+
+.ok
+	ld d, [hl]
+	push de
+	inc hl
+	ld a, [hl]
+	ld [wTypeMatchup], a
+	call BattleCommand_MoveDelay
+	ld hl, MagnitudeText
+	call StdBattleTextBox
+	pop de
+	pop bc
+	ret
+
+INCLUDE "data/moves/magnitude_power.asm"