You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) Show up to 3 “Blue-Eyes White Dragon(s)” from your hand, face-up field, and/or GY, then destroy that many cards your opponent controls.
(2) You can banish this card from your GY; Ritual Summon 1 Ritual Monster from your hand, by Tributing “Blue-Eyes White Dragon(s)” from your hand or field whose total Levels exactly equal the Level of that Ritual Monster.