During either player's Main Phase or Battle Phase: Target 1 monster in your Graveyard with 2400 or more ATK and 1000 DEF; add it to your hand, then immediately after this effect resolves, you can Tribute Summon 1 monster with 2400 or more ATK and 1000 DEF in face-up Attack Position. You can only activate 1 "Dark Advance" per turn.