Being able to build a good hand quickly undoubtedly provides a sense of security for the rest of the game
For a deceptively low mana cost, it forces an opponent to discard their entire handan effect so oppressive that Mind Twist has long been restricted or outright banned in various formats
This ability allows me to attack with my creatures while still letting them block
For this list in particular the Jar is very poor as in order to use it right away you have to have spent five mana
It's not all that surprising, considering Gengar is one of the most popular Gen 1 Pokemon, and has been a big hitter from the early days (Fossil, Skyridge, Neo Destiny) and even in more recent sets (Team Up, Phantom Forces.) Although Gengar appears to be unleashing a devastating attack, showcasing his menacing and threatening nature, when you look closely, it looks like all he is pulling in is berries and other food
Heres to hoping that we get virtual tabletops with animated cards and effects at some point in the future