mtg card that untaps artifacts Clock of Omens [Fifth Dawn] put a +1/+1 counter on it A way to continuously untap

In Standard and Pioneer, Monastery Swiftspear, Slickshot Show-Off, Emberheart Challenger, and others are paired with burn spells and auras to reduce the opponents life total quickly

Its trivially easy to set up, though the cards quite underwhelming if youre #23

Legality depends on the tournament format -- Flip the Switch can be legal in some formats and banned or restricted in others

It becomes a powerful threat on its own, or it spreads the love around your team, making them stronger and offering some potent protection

Schematic foil: $8 to $10 Mox Amber Popular within the Commander and Modern formats, Mox Amber is great for mana fixing in MTG decks with an abundance of legendary creatures