Viashino Bey

Creature - Viashino 4/3, 2RR (4)
If Viashino Bey attacks, all creatures you control attack if able.¹
When the bey runs, match his stride. -Viashino saying
Illus. Bradley Williams

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: The ability is not a triggered ability. It is a constraint on declaring an attack.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (1/6)	Urza's Legacy (Common)