Night's Whisper might do much the same for your card advantage situation for the mana and it wouldn't becomes useless as your opponent consumed their hand but that is entirely overlooking the disruption caused by discard
dashing or not dashing in a Ragavan, Nimble Pilferer
The format is currently bogged down with Uro, Titan of Natures Wrath and Hydroid Krasis, making this sweeper an undesirable option for control users
A control deck focused on stalling the game and protecting its life total would benefit from including Blazing Archon in its strategy, as it effectively shuts down creature-based aggression
If you gain control of another player's creature until end of turn and exert it, and then that player regains control of it, it will untap during that player's untap step
Clay said Arena is testing a system where players win one every time they compete, up to 30 cards a day