Bonded Construct — ruling 1

Bonded Construct can be declared as an attacker only if another creature is declared as an attacker at the same time.

Bonded Construct — ruling 2

If you control more than one creature that can’t attack alone, they can attack together, even if no other creatures attack.

Bonded Construct — ruling 3

Although Bonded Construct can’t attack alone, other attacking creatures don’t have to attack the same player or planeswalker. For example, Bonded Construct could attack an opponent and another creature could attack a planeswalker that opponent controls.

Bonded Construct — ruling 4

If a creature that can’t attack alone also must attack if able, its controller must attack with it and another creature if able.

Bonded Construct — ruling 5

In a Two-Headed Giant game (or in another format using the shared team turns option), Bonded Construct can attack with a creature controlled by your teammate, even if no other creatures you control attack.

Bonded Construct : règles, fonctionnement et interactions (MTG)

Bonded Construct is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

This creature can't attack alone.

How it works : Bonded Construct

Original English text — Wizards of the Coast / Scryfall

#1June 22, 2015· Wizards of the Coast
Bonded Construct can be declared as an attacker only if another creature is declared as an attacker at the same time.
No other card is named in this ruling.
#2June 22, 2015· Wizards of the Coast
If you control more than one creature that can’t attack alone, they can attack together, even if no other creatures attack.
No other card is named in this ruling.
#3June 22, 2015· Wizards of the Coast
Although Bonded Construct can’t attack alone, other attacking creatures don’t have to attack the same player or planeswalker. For example, Bonded Construct could attack an opponent and another creature could attack a planeswalker that opponent controls.
No other card is named in this ruling.
#4June 22, 2015· Wizards of the Coast
If a creature that can’t attack alone also must attack if able, its controller must attack with it and another creature if able.
No other card is named in this ruling.
#5June 22, 2015· Wizards of the Coast
In a Two-Headed Giant game (or in another format using the shared team turns option), Bonded Construct can attack with a creature controlled by your teammate, even if no other creatures you control attack.
No other card is named in this ruling.