The only time you would do otherwise is in the case that your opponent is forced to bench only one Archeops (it does happen)
Veil of Darkness: 20 Discard as many cards as you like from your hand
Fun fact, and for those unaware, Aerodactyl is based on the bone structure of illustrated interpretations of the pterosaur

Talrand Tempo Talrand, Sky Summoner | Illustration by Svetlin Velinov Commander (1) Planeswalkers (2) Jace, Architect of Thought Kasmina, Enigmatic Mentor Sorceries (12) Arm with Aether Candlekeep Inspiration Clear the Mind Mana Vapors Mass Diminish Misstep Portent Ravenform Reminisce Silver Scrutiny Winged Words Witness the Future Instants (50) Aetherize Anticipate Brainsurge Chemister's Insight Consider Curate Curfew Depart the Realm Divide by Zero Flow of Knowledge Geistwave Glimpse of Freedom Gush Impulse Into the Flood Maw Jwari Disruption Keep Safe Keep Watch Lazotep Plating Leadership Vacuum Learn from the Past Long River's Pull Ojutai's Breath Oona's Grace Opt Ovinize Peek Polymorphous Rush Radical Idea Reality Ripple Rebuild Repulse Sage's Dousing Scour from Existence Silundi Vision Suspend Telling Time Think Twice Tolarian Winds Unexplained Disappearance Unsubstantiate Unsummon Unwind Vapor Snag Whirlwind Denial Whispers of the Muse Wipe Away You Come to a River You Find the Villains' Lair You See a Guard Approach Artifacts (1) Enchantments (1) Lands (33) Blast Zone Castle Vantress Demolition Field Island x24 Isolated Watchtower Lonely Sandbar Memorial to Genius Remote Isle Rivendell Riptide Laboratory Blue and budget don't always go in the same sentences about Commander, but Talrand, Sky Summoner is an exception

Im going to identify the cards I feel are currently undervalued and go over all the cards that are currently above bulk price
Cards that have better centering are generally more valuable