We also can OHKO back to back
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
In battle, it allows for its trainer to search for up to 6 cards in a deck with its Twinkle Gathering attack
Aerith Gainsborough is more expensive, but the built-in lifelink means you probably dont need to worry about where your lifegain comes from
However, there are some exceptions to this, and this fact, paired with Volcanion ex's ability, makes it an intriguing option for fans of rogue decks to use
Hand: Special Summon 1 monster from your hand