Machina Fortress

Edison Card Text
You can discard Machine(s) whose total Levels equal 8 or more, then Special Summon this card (from your hand/GY).
① If this card is destroyed by battle and sent to the GY: Target 1 card your opponent controls; destroy that target.
② Before resolving an opponent's monster effect that targets this face-up card, look at their hand, and discard 1 card from it.
Targets
Note: the first effect
Damage Step • Substep 7
Banlist • Unlimited
Interactions
If Demise destroys the field, can Gearframe protect Fortress by being destroyed instead?✓
Demise resolves while Fortress is equipped with Gearframe.
No. Demise destroys both of them, so Gearframe cannot replace Fortress's destruction in this case.
Can D.D. Crow be chained to Machina Fortress's Summon?✓
Fortress is being Special Summoned by its summoning condition.
No. Fortress is an inherent Summon and it does not start a chain; you must Crow before the player declares the Summon.
Rulings
edisonformat.net
● This card can discard itself as part of the cost for its Ⓢ.
● If the effect targeting this card resolves negated, the ② effect still applies.
edisonformat.com
(S) You can discard Machine-Type monster(s) whose total Levels equal 8 or more to Special Summon this card from your hand or Graveyard. (1) When this card is destroyed by battle and sent to the Graveyard, select and destroy 1 card your opponent controls. (2) When this face-up card you control is targeted by an opponent's Effect Monster's effect, look at your opponent's hand and discard 1 card from their hand.
The (S) Special Summon does not start a chain.
Discarding a Machine-Type monster(s) is a cost.
You can discard "Machina Fortress" as part of the cost to perform this Special Summon.
This Summon can be performed while "Macro Cosmos" / "Dimensional Fissure" is active.
If "Macro Cosmos" / "Dimensional Fissure" is active, you cannot discard "Machina Fortress" and another Machine-Type monster to Special Summon that copy of "Machina Fortress", since after being discarded "Machina Fortress" will be removed from play.
The (1) mandatory Trigger Effect activates in Substep 7 - End of the Damage Step.
This effect targets 1 card on your opponent's field.
This effect cannot activate if this card is removed from play instead.
The (2) Continuous Effect does not activate.
This effect is applied before resolving the effect that targeted this card [REF]].
If multiple copies of "Machina Fortresses"
were targeted by your opponent's “Brionac, Dragon of the Ice Barrier”, you first decide whether or not you want to Chain any effects. Then, when you go to resolve the effect of Brionac, first look at your opponent’s hand and discard 1 card from it for each "Machina Fortress" that was targeted. Finally, resolve Brionac’s effect.