If this is the only card in your hand, you can Special Summon it (from your hand). When this card is Summoned: You can draw 2 cards. You must control no other cards and have no cards in your hand to activate and to resolve this effect.
His special ability never works in duel links no matter how you try it it needs to be fixed and has made me lose duels that turn because I couldn't draw anything to help my self even when I had nothing on the field and had no cards in my hand then I drew him and played him and as the card says I should draw two cards but nothing happens it doesn't give me any option to draw two cards if you're putting him in your deck for his ability don't because it doesn't work
Keep in mind, too, that a lot of anime cards end up adopting the TCG/OCG effects when they appear later on. Ancient Lamp, Catapult Turtle, Future Fusion and Level Modulation all changed to match their TCG/OCG effects during the course of their debut series for example.