Colossal Skyturtle
Enchantment Creature — Turtle
[[ keyword: "Flying" ]], ward 
Channel — , Discard this card: Return target card from your graveyard to your hand.
Channel — 
, Discard this card: Return target creature to its owner's hand.
Nicholas Gregory
Kamigawa: Neon Dynasty (NEO)
• #216Rulings
If a channel ability requires a target, you may not activate it without a target just to discard the card.
(wotc • 2022-02-18)
Discarding the card is part of the cost to activate a channel ability.
(wotc • 2022-02-18)
Rulings
If a channel ability requires a target, you may not activate it without a target just to discard the card.
(wotc • 2022-02-18)
Discarding the card is part of the cost to activate a channel ability.
(wotc • 2022-02-18)