Heavy Mech Support Platform

(1) Once per turn, during your Main Phase, you can equip this card to a Machine-Type monster you control as an Equip Card, OR unequip it and Special Summon it in face-up Attack Position. (2) While equipped to a monster by this effect, that monster gains 500 ATK and DEF. (C) (A monster can only be equipped with 1 Union Monster at a time. If the equipped monster would be destroyed, this card is destroyed instead.)

• Note that Heavy Mech Support Platform is different from other Union Monsters in that its last sentence is applied if the monster it is equipped to is destroyed (period), not just when the monster is destroyed as a result of battle. This extra effect does not apply to previous Union Monsters.
• If a monster equipped with Heavy Mech Support Platform is targeted by Ring of Destruction, then Heavy Mech Support Platform is destroyed instead of the equipped monster, and the damage inflicted to both players by Ring of Destruction is 0 (because the monster targeted by Ring of Destruction was not destroyed by it).
• If you have a monster, X-Head Cannon for example, equipped with Heavy Mech Support Platform, and you activate Limiter Removal, the ATK will becomes (1800 + 500) x 2 = 4600. Also, the Heavy Mech Support Platform will be destroyed instead of the X-Head Cannon during the End Phase (by the effect of Limiter Removal) and X-Head Cannon's ATK will no longer be doubled.
• If Heavy Mech Support Platform is equipped to Big Core or Reflect Bounder and they would be destroyed by their effect, Heavy Mech Support Platform is destroyed instead.
• If "Reflect Bounder" equipped with "Heavy Mech Support Platform" is attacked by "Dark Ruler Ha Des", during damage calculation "Heavy Mech Support Platform" is destroyed instead of "Reflect Bounder". Then, after damage calculation, "Reflect Bounder" will destroy itself by its own effect. Its effect is not negated, because it was not destroyed by "Dark Ruler Ha Des".