Ugin is the evolution of that sweeper, always giving control players an escape in a normally inescapable situation
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#5 Katara, the Fearless (Borderless) (Neon Ink Foil) From a lore standpoint, Katara is one of the strongest characters in Avatar: The Last Airbender, and also an incredibly solid one
Common strategies include reaching a specific life total, like with Felidar Sovereign, or fulfilling a condition like Jace, Wielder of Mysteries, or Approach of the Second Sun
Each has a straight-forward path to win with a unique strategy
It doesn't look like much, but never underestimate just how much undying can do for a card