1 Tuner + 1 or more non-Tuner monsters If this card is sent from the Monster Zone to the Graveyard: You can target 1 face-up monster your opponent controls; equip this card from your Graveyard to that monster. That monster cannot attack, also its effects are negated. If this card leaves the field while equipped to an opponent's monster by this effect: Take control of the monster this card was equipped to.
Opponents can remove their monster from the field to prevent you from stealing it.
You can send Old Entity Hastor to the graveyard by tributing, using as Synchro or Fusion material, or crashing into a stronger monster.
Use Old Entity Hastorr as cost for other card effects. Scrap Dragon can destroy Hastorr in your monster zone or Spell/Trap zone to trigger its effect. Double Cyclone and Release Restraint Wave can remove Hastorr from your Spell/Trap zone while also getting rid of the opponent's backrow.
Alien Ammonite with a level-3 Alien monster can be used to summon Old Entity Hastor. Use Cosmic Fortress Gol’gar to return an Old Entity Hastor in your Spell/Trap zone to the extra deck, taking control of your opponent’s monster and spread A-counters.
Activates from your Graveyard / Equips self from Graveyard / Changes control
Negates the effects of your opponent's Effect Monsters