It’s in the title so try turn a pokemon into a Pseudo Legendary

Hard Mode: Redesign an entire line to have it be similar to a Pseudo-Legendary’s evolutionary line.
Harder Mode: If the pokemon you chose doesn’t evolve nor have any pre-evolutions. Come up with pre-evolutions.
Pichu
HP: 40
Attack: 50
Defense: 30
Special Attack: 55
Special Defense: 45
Speed: 80
BST: 300
Evolves into Pikachu at Level 20
Pikachu
HP: 50
Attack: 70
Defense: 50
Special Attack: 70
Special Defense: 60
Speed: 120
BST: 420
Evolves into Raichu when using a Thunder Stone when at levels 45 and beyond
Raichu
HP: 90
Attack: 90
Defense: 90
Special Attack: 110
Special Defense: 90
Speed: 130
BST: 600