he only changed his types
You need to be able to balance your interaction with less aggressive plays like returning cards via Rob the Hoard on Crystal Dragon or protecting your creatures with Scale Deflection on Dread Linnorm
Not only does the Ghast give you a solid extort creature itself, it also helps you pay for it via its mana-doubling passive ability
The suspend mechanic usually isnt in abundance in a given Cube, but time travel does open up more meaningful ways to approach using suspend as a theme
However, if youre playing a commander that doesnt generate value, such as [c]Kaalia, the Vast[/c], youll definitely want to include many ways of drawing extra cards
This is a really powerful effect, especially considering that the damage can be targeted anywhere