Dragon Tempest gives your dragons haste and turns each new dragon into damage, while Lathliss, Dragon Queen adds extra dragon bodies to snowball your board
From this, we can take an educated guess which the most valuable are going to be based on how popular the cards are both with players and collectors
Her game plan stays clear and consistent across most Commander tables
Mairsil will not be stuck in exile
He wants hasty or flash creatures, who are dying, and artifacts that produce mana, ideally for spells that take the most advantage of split second

Jason's Not a Squirrel Deck | Commander | Jason Alt Commander (1) 1 Toski, Bearer of Secrets Creatures (27) 1 Arasta of the Endless Web 1 Arbor Elf 1 Archetype of Endurance 1 Avenger of Zendikar 1 Beast Whisperer 1 Bellowing Tanglewurm 1 Birds of Paradise 1 Champion of Lambholt 1 Citanul Hierophants 1 Craterhoof Behemoth 1 Deep Forest Hermit 1 Deranged Hermit 1 Dryad of the Ilysian Grove 1 Elvish Mystic 1 Eternal Witness 1 Hope of Ghirapur 1 Jolrael, Mwonvuli Recluse 1 Llanowar Elves 1 Mycoloth 1 Ohran Frostfang 1 Reclamation Sage 1 Sakura-Tribe Elder 1 Scryb Sprites 1 Silhana Ledgewalker 1 Spire Tracer 1 Squirrel Wrangler 1 Tendershoot Dryad Planeswalkers (1) 1 Freyalise, Llanowar's Fury Instants (5) 1 Beast Within 1 Crop Rotation 1 Heroic Intervention 1 Krosan Grip 1 Second Harvest Sorceries (3) 1 Bala Ged Recovery 1 Finale of Devastation 1 Green Sun's Zenith Enchantments (19) 1 Ancestral Mask 1 Bear Umbra 1 Beastmaster Ascension 1 Burgeoning 1 Cryptolith Rite 1 Doubling Season 1 Druids' Repository 1 Earthcraft 1 Fertile Ground 1 Growing Rites of Itlimoc 1 Guardian Project 1 Helix Pinnacle 1 Parallel Lives 1 Rancor 1 Season of Growth 1 Snake Umbra 1 Squirrel Nest 1 Sylvan Library 1 Wild Growth This deck looks like it will be a lot of fun
