As Destiny Hero - Plasma's equip effect is a "Once Per Turn" effect, yes it can, and the existing monster is destroyed.
Any Equip card that doesn't specifically say otherwise, can be equipped to your opponent's monsters. Even if that would be disadvantageous to you, it still can be done. It also means if a monster is equipped with Axe of Despair, it still remains equipped with it even if control of the monster changed.
Relinquished's equipped monster is destroyed if Relinquished's ATK is lower than the foe's attacking monster's ATK. If Relinquished is in Defense position, its equipped monster is destroyed if its DEF is less than the attacking monster's ATK. Either way, Relinquished remains on the field.
"Shocktopus" goes into your Spell/Trap card zone and is considered equipped to opponent's monster.
No.
There are 3 Spell Cards in the TCG that change a monster's type: the Equip Spell "Dragonic Attack", which changes the equipped monster into a Dragon; the Equip Spell "Reptillianne Rage", which changes the equipped monster into a Reptile; and the Field Spell "Zombie World" which changes all monsters in play and in the Graveyards into Zombies.
Any Equip card that doesn't specifically say otherwise, can be equipped to your opponent's monsters. Even if that would be disadvantageous to you, it still can be done. It also means if a monster is equipped with Axe of Despair, it still remains equipped with it even if control of the monster changed.
No, only monsters who specifically say they do, gain such a bonus. Relinquished for example, is one. It gains a bonus depending on what it has equipped, as does Destiny Hero Plasma. Dragunity monsters do not, unless one does actually say so.
If an equipped monster finds itself no longer equipped to a monster for any reason, then it is sent to the graveyard.
Ignoring things like Relinquished or Destiny Hero Plasma, Pitch-Dark Dragon can only Union itself with a Dark Blade monster you control.
the monster still gets the bonus of attack points hope this helps!
then all cards on the field are destroyed unless the union monster has an effect that says that it can be destroyed instead of the equipped monster
Relinquished's equipped monster is destroyed if Relinquished's ATK is lower than the foe's attacking monster's ATK. If Relinquished is in Defense position, its equipped monster is destroyed if its DEF is less than the attacking monster's ATK. Either way, Relinquished remains on the field.
"Shocktopus" goes into your Spell/Trap card zone and is considered equipped to opponent's monster.
Flint is sent to the graveyard
Yes you can, Soul Exchange simply offers a monster on your opponents side of the field as a tribute, as well as any others you may control.
It mean that to trigger, they had to be sent to the graveyard while they were equipping a monster. That means if they were discarded from hand, or destroyed while face down, or destroyed because the equipped monster was turned face-down or was removed from the field, then they will not get their effect. But if it was equipped to a monster, and an effect destroyed it (or destroyed it and the monster simultaneously) then that effect will be applied.
No, control of the Equip Spell card itself does not change, nor does it move. It remains on the same side of the field and equipped to the same monster, unless the control change made the monster an invalid equipping target.For example, if the Spell Creature Swap targets a monster equipped with Ring of Magnetism, Ring of Magnetismwill be destroyed.However, if the Spell Brain Control targets a monster equipped with Flint, Flint will stay on the same card zone but still equipped to the monster.