Hallo the Great Spirit of Tricks

[ Fiend / Effect ] You can only use the (1)st and (2)nd effects of this card’s name each once per turn. (1) If this card is Normal or Special Summoned: You can make your opponent choose 1 of these effects for you to apply. You must control this face-up card to activate and to resolve this effect. ● This card gains 800 ATK for each Fiend monster in your GY. ● Inflict 500 damage to your opponent for each Fiend monster in your GY. (2) If this card is destroyed by battle or effect: You can send 1 monster your opponent controls to the GY. ATK/ 0 DEF/ 0