While two points of damage might not do much, the life gain and card advantage certainly do
The passive alone is useful, and it also allows you to get a second use out of a creature, whether because it has a good enters effect, or because it hits hard
Examples include Airtight Alibi, Alexi's Cloak (an old one), and Encase in Ice
As an example, if your pokemon has the poison effect, they will take 10 damage not only during your turn, but also your opponent's turn so you would want to cure your status effects as quickly as possible
Its brighter palette and more energetic composition appeal to collectors who enjoy high-impact artwork
I suppose all the mechanics make it some sort of monstrosity you'd expect to see in the Time-Spiral block, but I wanted it to have that feeling attached to it without going too overboard