How to make custom "While key held" on a star?

[LegumI]

Basically, only effect that works on star while key held is the default one (speedy), how can I make it give Berserk?

[Zolmex]

<ExtraTooltipData>
<EffectInfo name="{equip.While_Key_Held}" description=""/>
<EffectInfo name="" description="{equip.Berserk_on_self}"/>
<EffectInfo name="" description="{equip.Drain_10_MP/sec}"/>
<EffectInfo name="{equip.When_Key_Released}" description=""/>
</ExtraTooltipData>
Try with that

[HGAEHaeheadhetdhtertherh]

wServer/realm/entities/player/Player.UseItem.cs

case ActivateEffects.ShurikenAbility:
                        {
                            if (!ninjaShoot)
                            {
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Speedy,
                                    DurationMS = -1
                                });
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Berserk,
                                    DurationMS = -1
                                });
                                ninjaFreeTimer = true;
                                ninjaShoot = true;
                            }
                            else
                            {
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Speedy,
                                    DurationMS = 0
                                });
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Berserk,
                                    DurationMS = 0
                                });
                                ushort obj;
                                Manager.GameData.IdToObjectType.TryGetValue(item.ObjectId, out obj);
                                if (Mp >= item.MpEndCost)
                                {
                                    ActivateShoot(time, item, pkt.ItemUsePos);
                                    Mp -= (int)item.MpEndCost;
                                }
                                targetlink = target;
                                ninjaShoot = false;
                            }
                        }
                        break;

[LegumI]

wServer/realm/entities/player/Player.UseItem.cs

case ActivateEffects.ShurikenAbility:
                        {
                            if (!ninjaShoot)
                            {
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Speedy,
                                    DurationMS = -1
                                });
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Berserk,
                                    DurationMS = -1
                                });
                                ninjaFreeTimer = true;
                                ninjaShoot = true;
                            }
                            else
                            {
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Speedy,
                                    DurationMS = 0
                                });
                                ApplyConditionEffect(new ConditionEffect
                                {
                                    Effect = ConditionEffectIndex.Berserk,
                                    DurationMS = 0
                                });
                                ushort obj;
                                Manager.GameData.IdToObjectType.TryGetValue(item.ObjectId, out obj);
                                if (Mp >= item.MpEndCost)
                                {
                                    ActivateShoot(time, item, pkt.ItemUsePos);
                                    Mp -= (int)item.MpEndCost;
                                }
                                targetlink = target;
                                ninjaShoot = false;
                            }
                        }
                        break;

Thanks what about making drain higher? like 25/s