this.addAbility(new ConditionalTriggeredAbility(
new DiesAttachedTriggeredAbility(new ReturnToBattlefieldUnderYourControlAttachedEffect(),"equipped creature", false),
new OathkeeperEquippedMatchesFilterCondition(filter),
""));
// When Oathkeeper, Takeno's Daisho is put into a graveyard from the battlefield, exile equipped creature.
this.addAbility(new PutIntoGraveFromBattlefieldTriggeredAbility(new ExileEquippedEffect()));
// Equip {2}
this.addAbility(new EquipAbility( Outcome.BoostCreature, new ManaCostsImpl("{2}")));
}