Theres two slots dedicated to rares or mythics
Which in turn means that: If there's a third effect, Event C, that happens whenever Event A happens, And Event A gets replaced by Event B, Then Event C won't happen either (because Event A never happened), Third, replacement effects only modify an event once
One shows the characters chilling at Iroh's tea shop, the other shows the doomed assault on the Fire Nation on the Day of Black Sun
With Universes Beyond, I might as well allow myself to enjoy when they make cards of things I like
And there are a lot of factors we can use to determine which particular Mountain were going to call our own
Cards like Custodi Lich have effects that trigger whenever you become the monarch