Stronger, fully-evolved Pokmon tend to have more HP than weaker ones
Another clone enters and copies the cloned Chupacabra, which results in another Chupacabra entering the battlefield
One of my favorite formats of all time combines Five Color, Highlander, and Pauper, into a deck that requires 250 cards, 20 cards of each color, only commons, and no more than one copy per common (other than basic lands)
Even its non-Stellar attack, Psych Out, forces your opponent to discard a card at random from their hand, in addition to its 160 damage dealt to their Active Pokmon
Your entire deck would pretty much consist of only non-Creature cards, and this can include strong Enchantments like Omniscience or powerful Planeswalkers like the ubiquitous Ugin, the Spirit Dragon