"Can't enter" effects (Moved Prevent$) mess up ChangedState

[tool4ever]

Examples with Grafdigger's Cage in play:

• Cast Ever After on Abbey Griffin. You now have a Zombie Griffin in your graveyard
• Try to return artifact creature that got Unearth from Ghost Ark. It now lost Unearth
• Startled Awake will transform and then stay in the graveyard, but it should be allowed to ETB

Also combined with Containment Priest Forge allows you to order both so you could make it exile which seems wrong too.

They should probably be done as statics?

[Hanmac]

@tool4ever

614.17. Some effects state that something can’t happen. These effects aren’t replacement effects, but follow similar rules.

but yeah i need to look into better cleanup :(

614.17c If an event can’t happen, it can only be replaced by a self-replacement effect (see rule 614.15). Other replacement and/or prevention effects can’t modify or replace it.

We Probably should tinker with the Replacement Layers there

614.15. Some replacement effects are not continuous effects. Rather, they are an effect of a resolving spell or ability that replace part or all of that spell or ability’s own effect(s). Such effects are called self-replacement effects. The text creating a self-replacement effect is usually part of the ability whose effect is being replaced, but the text can be a separate ability, particularly when preceded by an ability word. When applying replacement effects to an event, self-replacement effects are applied before other replacement effects.

These are mostly done via SubAbilities, so we probably doesn't need to care

[Hanmac]

we might even turn more Cant Statics into Replacement effects