mtg hydra cards Voracious - Single Card you gain life and draw cards equal to its power. Nyxborn Hydra - Enchantment -

This article looks at coin flip commanders, chaos tools, Krark and Sakashima combo lines, old-school oddities, modern payoffs, and how Krarks Thumb turns randomness into a real deckbuilding strategy

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

By combining this you can sweep, keep your Commander and then drop all else, at instant speed despite what abilities they have to keep them up

Ghost Quarter plus Leonin Arbiter is a build-your-own Strip Mine, another card thats restricted in Vintage

I like to think of it like the red Parallel Lives, and even if its not the commander its a staple in dragon-themed decks