Along with that, they also grant each instant and sorcery in your graveyard flashback, with the cost being equal to its mana cost
Heres a rough breakdown
Yes, one turn cycle of Weakness is far weaker protection than Unsummon or Flameslash but it is on a + ability not a - one which makes it vastly more threatening
Though aware that he could potentially inflict 5000 damage to Blue Maiden, Bohman also knew that the effect of "Marbled Rock" would reduce the damage he inflicted, so he instead used his three "Coolant Hydradrives" to Link Summon "Cubed Hydradrive Lord", negating the effect of "Marbled Rock"
UR Ultra Rare Blast Sphere X DARK Level 4 [ MachineEffect ] ATK 1400 DEF 1400 If this face-down Defense Position card was attacked by an opponent's monster, before damage calculation: Equip this card to the attacking monster
Special Summon 1 "Gladiator Beast" monster from your Deck, except "Gladiator Beast Lanista"