suggestion: allow delta cards to have new abilities, but only if they're clones of one of their old abilities. Because with the rules like this, Delta starters can't get Overgrow clones for their new types, which makes me sad.
Pokemon: Snorlax-Delta
Based on: (Name or picture of the card)
Stats: 160/110/65/65/110/30 (540)
New Abilities: Corrosion / Thick Fat / Gluttony (Hidden)
New Type: Poison/Normal
Added Moves: Poison Jab, Sludge Bomb, Sludge Wave, Clear Smog, Toxic Spikes, Venom Drench
Deltalax has drastically increased defense and support capabilities. Not only that, but it's the bulky user that Corrosion always wanted, able to put pressure onto Steel-types and other Poison-types simply by being on a team.
Pokemon: Omastar-Delta
Based on:
Stats: 70/60/125/115/70/55 (495)
New Abilities: Swift Swim / Cursed Body / Weak Armor (Hidden)
New Type: Ghost/Water
Added Moves: Shadow Ball
Basically Omastar without those pesky weaknesses it gets from Rock holding it back.