Which makes sense: why play one of the best Pokmon cards out there when you could play two of them
It really comes down to whether or not you think its best to have an enabler or a payoff as your commander, since Szarekh mills you while Imotekh rewards you for getting stuff out of your graveyard once its milled
$0.49 Thistledown Players Bloomburrow $0.49 Mouse Trapper Bloomburrow $0.49 Whiskerquill Scribe Bloomburrow $0.49 Roughshod Duo Bloomburrow $0.49 Heartfire Hero Bloomburrow $3.99 Emberheart Challenger (0315 - Showcase) Bloomburrow Variants $0.49 Canyon Jerboa (Showcase) Zendikar Rising Variants $0.49 Seedglaive Mentor Bloomburrow $0.49 Brambleguard Captain Bloomburrow $1.99 Manifold Mouse (0318 - Showcase) Bloomburrow Variants $0.49 Might of the Meek Bloomburrow $0.49 Brave-Kin Duo Bloomburrow 0 results found
It adds first strike, plus the potential to free-cast more expensive cards if you can stockpile extra energy before playing it
Ghalta, Stampede Tyrant Yes, Ghalta, Stampede Tyrant is limited to the creatures in your hand, but not everything can have multiple instances of cascade and discover
So its no surprise that Robin Hood, Champion of Sherwood is relatively expensive even as a non-Enchanted card