The highest HP a Pokemon card could have is 500 hp and that is only for jumbo cards and promos like the 'Zoroark and Legendary Pokemon' below
Promo Info BOOSTER WORLD CONVERGENCE [BT-21] CLOSECLOSE BT21-089 SR Tamer Parallel Rare Takato Matsuki Color Purple Red Form - Attribute - Type Hero DP - Cost 3 Digivolve Cost 1 - Digivolve Cost 2 - Upper Text [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory
It has a high attack and defense for a Rank 4, but if you use its effect, you will not be able to attack, and the strength you can summon will basically be a monster lower than yourself
So discarding a split card counts as discarding a single card, and a split card in your graveyard counts as a single card with the types of both halves(for the purposes of something like Delve)
Fusion Summon 1 Fusion Monster from your Extra Deck using monsters on either field, including this card, but you cannot use other monsters you control as material