Tariel, Reckoner of Souls (Foil Etched) [Double Masters 2022] Team Rocket Returns if I cast it twice

if I cast it twice

When Ancestral Knowledge leaves the battlefield

Set: Time Spiral Type: Instant Rarity: Rare Cost: {W} Split second (As long as this spell is on the stack

Equip {3} ({3}: Attach to target creature you control

if that spell's mana cost or that ability's activation cost contains {X}

Tariel, Reckoner of Souls (Foil Etched) [Double Masters 2022] Team Rocket Returns if I cast it twiceSet: Double Masters 2022 Type: Legendary Creature Angel Rarity: Rare Cost: {4}{R}{W}{B} Flying, vigilance {T}: Choose a creature card at random from target opponent's graveyard. Put that card onto the battlefield under your control. "After death you face paradise, damnation, or Tariel." Priest's teaching