I was going to necro one of the old topics but thought it better to start fresh.
Say I am a gnome with effortless trickery targeting silent image
Silent Image
Range long (400 ft. + 40 ft./level)
Effect visual figment that cannot extend beyond four 10-ft. cubes + one 10-ft. cube/level (S)
Duration concentration
Saving Throw Will disbelief (if interacted with); Spell Resistance no
This spell creates the visual illusion of an object, creature, or force, as visualized by you. The illusion does not create sound, smell, texture, or temperature. You can move the image within the limits of the size of the effect.
First, since you are concentrating on the illusion I assume you can move it, change it's shape, have it follow someone (or you) around etc.
If that's the case at the start of the day could you create an illusion of a bracelet, tell everyone in your party that it's an illusion and then have them touch it so that they can see through it. (A successful saving throw against an illusion reveals it to be false, but a figment or phantasm remains as a translucent outline.-srd) Later in the day if you get into a fight could you have that same illusion turn into a wall between you and the enemy (looking like ice wall or stone wall) which would block your party from view completely and, since your party has already seen through the illusion, leave the enemy completely vulnerable to spells and ranged attacks? Even if "spells and arrows flying through the wall cause the enemy to immediately disbelieve" that would still guarantee an unopposed round of attacks.
Alternatively you could have the wall seem to get destroyed as the spells/arrows pass through only to reform right after (to avoid the possible auto disbelief).
Lastly (and more to the actual idea that I had), If for some reason this didn't work for others could a Sound striker bard use his supernatural weird words through said illusion wall without giving away the illusion or his position? How would not being able to see his/her opponent effect my enemies ability to defend itself (would it give +2 to attack rolls and ignore dex to AC like invisibility)?
Also (since vanish IS an illusion it is still on topic) If you used vanish and then weird words would all of the attacks ignore dex and have +2 or just the first one? Since it's a standard action SU ability I assume all would benefit but I'm not sure...
Effect visual figment that cannot extend beyond four 10-ft. cubes + one 10-ft. cube/level (S)
You can move the image within the limits of the size of the effect.
As long as you don't move all day, this works just fine. But you have to decide which 10-foot cubes you are using when you cast the spell, and the image can't move outside of those.
Ok, thanks. So the first part is moot altogether.
What about the second part?
(If you have illusion between you and the enemy) could a Sound striker bard use his supernatural weird words through said illusory wall without giving away the illusion or his position? How would not being able to see his/her opponent effect my enemies ability to defend itself (would it give +2 to attack rolls and ignore dex to AC like invisibility)?
Also (since vanish IS an illusion it is still on topic) If you used vanish and then weird words would all of the attacks ignore dex and have +2 or just the first one?
Related question about Spellsong
You can blend the power of your performance and spellcasting.
Prerequisites: Cha 13, bardic performance class ability, able to cast 1st-level spells.
Benefit: You can combine your bardic performance and your spellcasting in two ways. First, you can conceal the activity of casting a bard spell by masking it in a performance. As a swift action, you may combine your casting time of a spell with a Perform check. Observers must make a Perception or Sense Motive check opposed by your Perform check to realize you are also casting a spell. This uses 1 round of your bardic performance ability, regardless of the spell's casting time.
Second, as a move action, you can use 1 round of bardic performance to maintain a bard spell with a duration of concentration. You can cast another spell in the same round you are using bardic magic to maintain concentration; if you do this, your concentration on the maintained spell ends when you end the bardic performance the spell is part of.
Could you use the first part of spellsong to attempt to hide the casting of the illusion and then use effortless trickery to continue the illusion?
Example:
Round 1) Use Spellsong to cast silent image using up one round of bardic performance.
Round 2) Maintain concentration on the spell using effortless trickery as a swift action and then use your standard action to use Weird Words.