Neo Kaiser Sea Horse

If you control "Blue-Eyes White Dragon": You can Special Summon this card from your hand. You can target 1 LIGHT Tuner you control; increase or decrease its Level by 1. If this card is sent from the field to the GY: You can send 1 "Blue-Eyes" monster or 1 monster that mentions "Blue-Eyes White Dragon" from your Deck to the GY, except "Neo Kaiser Sea Horse". You can only use each effect of "Neo Kaiser Sea Horse" once per turn.

Dragon LIGHT Tuner Monster 4 effect