The Pokmon TCG first launched in Japan in 1996, so this set is not just another collector wave with shiny packaging and familiar faces
Hexproof and shroud won't prevent a Role from becoming attached to a permanent if the ability creating that Role attached to that permanent doesn't target it
Landfall abilities can also change the course of a match, providing multiple abilities each time a land is played, or trigger multiple abilities from just one land
For one red mana, it gave a creature +2/+0 and trample, meaning it could run right over most blockers
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
Keeping red and blue separate, we have the following options for our Commander decks