Irelia, Dancer of Death

When Irelia, Deathdancer enters the battlefield and attacks or deals combat damage to a player, create 2 Artifact Equipment tokens, Masterful Dagger, with the ability "When I enter the battlefield, attach me to a creature your opponent controls, if that is not possible, then attach me to Irelia, dancer of death."
If a creature your opponent controls accumulates 4 Masterwork Daggers: This creature can't attack or block.
When Irelia, Dancer of Death accumulates 5 Master Daggers: she receives the first st