Xantcha, Sleeper Agent [Commander 2018] Friday Night Magic 2000 there is an additional combat

there is an additional combat phase

Prevent all damage that would be dealt to you this turn by attacking creatures

look at target player's hand

Sleeper Agent enters the battlefield under the control of an opponent of your choice

Take this delightful trinket for instance

Xantcha, Sleeper Agent [Commander 2018] Friday Night Magic 2000 there is an additional combatSet: Commander 2018 Type: Legendary Creature Minion Rare Cost: {1}{B}{R} Xantcha, Sleeper Agent enters the battlefield under the control of an opponent of your choice. Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls. {3}: Xantcha's controller loses 2 life and you draw a card. Any player may activate this ability.