Once Bonded Horncrest has attacked or blocked, it will remain in combat even if you no longer control another attacking or blocking creature.
2017-09-29
wotc
In a Two-Headed Giant game, Bonded Horncrest can attack or block with a creature controlled by your teammate, even if no other creatures you control are attacking or blocking.
2017-09-29
wotc
If you control more than one Bonded Horncrest, they can attack or block together, even if no other creatures attack or block.
2017-09-29
wotc
If an effect says that Bonded Horncrest attacks or blocks if able and you control another creature able to attack or block, you must attack or block with Bonded Horncrest and that creature.
2017-09-29
wotc
Although Bonded Horncrest can’t attack alone, other attacking creatures don’t have to attack the same player or planeswalker. For example, Bonded Horncrest could attack an opponent and another creature could attack a planeswalker that opponent controls. Similarly, other blocking creatures don’t have to block the same creature that Bonded Horncrest blocks.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Legal
Timeless
Legal
Gladiator
Legal
Pioneer
Legal
Modern
Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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