if the effect of "Sonic Jammer" is activated, you cannot activate "Spiritualism", but what about "Amplifier"?

you can summon a monster via "Last Will" 's effect during Battle Phase, but can you summon the monster during Damage Step?

first question: Sonic Jammer prevents you from activating spell cards altogether, so you wouldn't be able to activate Amplifier to begin with.

second question: You cannot use Last Will's effect during the damage step, because it does ot directly alter the attack/defense poiints of a monster.

searchers' effects like "Pyrimad Turtle" activates during damage step, and "Last Will" just create a state lets you summon the monster, so why can't it be during damage step? you are not activate the spell card "Last Will" itself, you just using the state created by it.

There are exceptions to the rule. Those exceptions are clearly stated on the card. Their being destroyed in battle is the requirement to activate their effects. These are called "trigger effects," which can be exceptions to the rule about activating card effects during the damage step. Also, why is there a need to use Last Will during the damage step?

Why it has nothing to do with the damage step? If the monster is being sent to the graveyard in battle, that means, it is sent during damage step, if you can summon a monster during damage step, your opponent cannot use "Torrential Tribute" or "Bottomless Trap Hole" on it.

Once "Last Will" is activated, it creates a sort of floating continuous effect that will happen when you a monster on your side of the field goes to your graveyard. It doesn't matter when the monster goes to the graveyard because you don't have to activate the effect again, it is already in effect.

The thing is, when you use "Last Will" 's effect, can you summon the monster during damage step of a monster of your is sent to the graveyard, thus your opponent cannot use "Torrential Tribute" on it.

ok, as you are saying, if you play last will, and then trigger its effect in the damage step, yes you summon during the damage step, and your opponent cannot use TT on it.

now the sonic jammer thing is kinda weird. since their is a ruling that says spiritualism cannot be activated, i'd say the same goes for amplifier. why is this weird? well their is also a ruling between spiritualism and spell cancelor. that ruling says that you CAN use spiritualism/amplifier if spell cancelor is present. so what, you say, well like sonic jammer, spell cancelor also says that spells cannot be activated. so this is quite weird in my opinion.