Territorial Hellkite
Creature — Dragon
Flying, haste
At the beginning of combat on your turn, choose an opponent at random that this creature didn't attack during your last combat. This creature attacks that player this combat if able. If you can't choose an opponent this way, tap this creature.
Jonas De Ro
Commander 2017 (C17)
• #29Rulings
If Territorial Hellkite can't attack the chosen player, it's free to attack any other player or planeswalker or to not attack. If there's a cost associated with attacking the chosen player, it's free to attack any other player or planeswalker or to not attack. But if there's a cost associated with Territorial Hellkite attacking at all, Territorial Hellkite has to attack the chosen player or not attack.
(wotc • 2017-08-25)
If Territorial Hellkite didn't attack during your last combat, most likely because it was tapped or you didn't control it at that time, then any opponent can be chosen at random.
(wotc • 2017-08-25)
Players may cast spells and activate abilities after a player is chosen at random for Territorial Hellkite but before it attacks that player.
(wotc • 2017-08-25)
If a player can't be attacked, that player can still be chosen at random.
(wotc • 2017-08-25)
Territorial Hellkite must attack the chosen player if able, not a planeswalker that player controls.
(wotc • 2017-08-25)
Rulings
If Territorial Hellkite can't attack the chosen player, it's free to attack any other player or planeswalker or to not attack. If there's a cost associated with attacking the chosen player, it's free to attack any other player or planeswalker or to not attack. But if there's a cost associated with Territorial Hellkite attacking at all, Territorial Hellkite has to attack the chosen player or not attack.
(wotc • 2017-08-25)
If Territorial Hellkite didn't attack during your last combat, most likely because it was tapped or you didn't control it at that time, then any opponent can be chosen at random.
(wotc • 2017-08-25)
Players may cast spells and activate abilities after a player is chosen at random for Territorial Hellkite but before it attacks that player.
(wotc • 2017-08-25)
If a player can't be attacked, that player can still be chosen at random.
(wotc • 2017-08-25)
Territorial Hellkite must attack the chosen player if able, not a planeswalker that player controls.
(wotc • 2017-08-25)