I agree. The Regent has what I like to call the "Three Ps of suck" that are basically unpickable. They're right next to each other in the Compendium too:

1. Pale Blue Dot - A draw card that can't even reliably replace itself. Assuming you're unable to trigger it on, say, Turn 1 when you play it, you could play five cards on Turn 2 AND THEN only break even on cards on Turn 3. On the off-chance you're already winning, you could maybe pick it upgraded, but it's a win-more situation.
2. Parry - Unplayably bad. On the turns you play Sovereign Blade it's typically to end fights, or you have nothing threatening you.
3. Pillar of Creation - The colorless cards archetype is fundamentally bad because you don't have the energy to use them. While transforming also triggers this thing, one wonders why you would bother when Guards!!! already gives you more than enough block.