No. As soon as you enter the end phase, Fiendish will effect the monster.
Only if you haven't activated it yet. Scenario 1: player A summons Kerykeion. Player B activates Fiendish Chain. Player A activates Mystical Space Typhoon to destroy Fiendish Chain. Player A is allowed to activate Kerykeion's effect. Scenario 2: Player A summons Kerykeion. Player B allows it. Player A activates Kerykeions effect, removing an Evilswarm monster and and targeting to add a different Evilswarm monster. Player B responds with Fiendish Chain, targeting Kerykeion. Player A then plays Mystical Space Typhoon to destroy Fiendish Chain. Player A is no longer allowed to activate Kerykeion this turn since his effect was already activated this turn.
If a monster activates an effect, then Fiendish Chain can be chained to this. Fiendish Chain will resolve first, meaning the monster's effect will be negated when it tries to resolve. So if Chaos Sorcerer activates his Ignition Effect, Fiendish Chain can be used to negate it.
no fiendish chain most certainly does not negate attacks, if the card does not state it negates an attack it does not negate attacks
The turn player has Priority, so can activate Chaos Sorcerer's effect as chain link 1. Fiendish Chain can be chained to this. Fiendish Chain will resolve first, so Chaos Sorcerer's effect will be negated when it tries to resolve.
Yes. Effect Veiler can chain to their activations in the main phase, and Fiendish Chain can chain to them at any time outside the damage step (meaning if they are attacked and flipped, it can't negate them).
Only if you haven't activated it yet. Scenario 1: player A summons Kerykeion. Player B activates Fiendish Chain. Player A activates Mystical Space Typhoon to destroy Fiendish Chain. Player A is allowed to activate Kerykeion's effect. Scenario 2: Player A summons Kerykeion. Player B allows it. Player A activates Kerykeions effect, removing an Evilswarm monster and and targeting to add a different Evilswarm monster. Player B responds with Fiendish Chain, targeting Kerykeion. Player A then plays Mystical Space Typhoon to destroy Fiendish Chain. Player A is no longer allowed to activate Kerykeion this turn since his effect was already activated this turn.
Fiendish was created in 2003.
fiendish mind, he has (EVIL CRUEL)
When the Fiendish Ghouls Night was created in 1996.
Grimly Fiendish was created on 1985-03-18.
Fiendish Regression was created on 2004-08-23.
"The little boy was fiendish when he put a tack in his teacher's chair."
Fiendish.
Fiendish Freddy's Big Top O'Fun happened in 1990.
Fiendish Freddy's Big Top O'Fun was created in 1990.
No. Because Fiendish Chain targets a monster, Obelisk the Tormentor will not be affected by it.
The duration of The Fiendish Plot of Dr. Fu Manchu is 1.68 hours.