15) [mwcard=MWSTX2FFC11] Sersiryx, Imp Familiar[/mwcard] can cast [mwcard=MWSTX2FFA01] Devil's Trident[/mwcard] because...reasons in another thread to be worked out?
Here's why:
Spells are only separated into spell-levels when spellbook building. In the actual game, spells and levels are separate.
In the actual game, a spell is not "Level 1 Fire, Level 1 Dark". It is level 2, and counts as both a Fire spell and a Dark spell (in much the same way that a Bitterwood Fox counts as both a Canine spell and an Animal spell)
So [mwcard=MWSTX2FFA01]Devil's Trident[/mwcard] satisfies all three conditions to be legal for casting by [mwcard=MWSTX2FFC11]Sersiryx, Imp Familiar[/mwcard].
1. It is a Level 2 spell
2. It is a Fire spell
3. It is an attack spell
Unstoppable and Tanglevine, Stranglevine, Quicksand: These cards can still target creatures with this trait, but are destroyed when the creature moves to a new zone?
An unstoppable creature automatically gains the Uncontainable and Unmovable traits, and so is an illegal target for Tanglevine and Stranglevine (because it is Uncontainable).
But [mwcard=FWJ07]Quicksand[/mwcard]...well, it gets a little weird, based on a literal interpretation of the rules.
A few conjurations target an object instead. These spells are attached to the target object and move with it if it is moved.
(emphasis mine)
But unlike Tangle/Stranglevine, there is nothing in Quicksand that prohibits casting it on an Uncontainable corporeal creature (such as Sardonyx, Talos, or even Devouring Jelly)
Which means (and I would like to stress that there is no rules ambiguity on this point whatsoever) if you cast Quicksand on one of these creatures,
it will follow it wherever it goes.Seems worthy of an official clarification, not to mention a change to the wording of Quicksand for future releases.