Out of the three of them, I think Jace, Wielder of Mysteries is the perfect mix of usefulness and power: he can be played early in the game for advantage, but he also encourages combat as he can be attacked directly
These all have effects that drastically push your card advantage and give you combo potential to win the game off of their effects
I love this card, and it is only made all the more epic given the fact that it evolves into one of the most valuable cards of all time Shining Gyarados
Its a powerful planeswalker that allows you to give retrace to cards that dont have it, allowing for wild combos
If your dino deck is packed with dinos (which it probably ought to be if it's a dino deck), consider including Vaultborn Tyrant, a mega-resilient dino that'll surely be drawing you tons of cards
Mechanically they were stronger versions of standard Pokemon, but their collectibility comes from the design: zoomed-in artwork that breaks the card frame, a textured holo treatment, and a small print window before the Black & White era replaced them entirely