Sigil Of Flame displays that it will deal *5 damage to all minions after playing a talented arcanist, however it only will deal 3 damage, not 5. Whether or not this is intended, it’s poor form for a card to say it will do one thing but then do something else when you play it.
It’s probably intended. There’s also a bug on the text for shield slam that’s similar, if you have spell damage it says, “…does *2 damage for every point of armor” but the spell damage only adds one point of damage. It’s probably more trouble for Blizzard to fix these then they would be worth.
I do not follow your reasoning. A card reads that it will do something, and then it doesn’t actually do it. That means there is some oversight that needs to be fixed.
It does seem like a bug to me (probably happened because sigils are a new mechanic in general and they missed the spell power snapshot element).
In the case of Sigil of Flame, did you have spell damage when you had it in hand / played it? Since the card is affected by spell damage, it is correct that it shows increased damage when you look at it at such a time. However, since the effect is delayed, the actual damage can be more if spell damage sources are removed or added in between playing the card and its effect triggering. The actual damage is governed by he spell damage at the time it triggers.
This can be confusing but it is consistent with other comparable situations, such as Explosive Trap. Or e.g Immolation Aura, which can have lower damage on its second wave if the first wave killed a Spell Damage minion.
The Shield Slam issue is not related to this.
All I meant is that in both cases the tooltip is misleading. They could reword those specific cards to remove the spell damage tag from the damage in the text and then put in specific language to explain their interactions, but it doesn’t seem like it would be worth the effort.
https://hearthstone.fandom.com/wiki/Talented_Arcanist
It says that the spell has +2 spell power when you cast it. So it should snapshot it with this battlecry.
In the case of all other spell power effects it only counts when dealing the damage (explosive trap, explosive rune, etc.)
They could probably reword it to say “The next spell that activates this turn has spell damage +2” That would be accurate to the way it works now.
Seems too long, they’ll probably just ignore it and say it’s on purpose later.
That’s not how delayed spells have ever worked. As I already mentioned, there’s precedence in secrets.
If you feel it should be changed, then you’re more likely to get heard if you propose it on other forums. This forum is read by Blizzard staff tasked with finding bugs. The game designers who actually can change design choices don’t read here (as far as I know) but do get information from other locations.