Modern-day iterations of these Dual Lands will have some type of drawback to using them, either by paying life for them to come into play untapped like the Shock lands, or more commonly, not having a basic land type associated with them
Undergrowth Recon has to be absolutely busted in some Commander combo I dont know about yet
Amass is the ideal solution, giving players a single Orc army to control rather than micro-managing a handful of tokens
Mill decks are basically required to run graveyard hate, otherwise you'll end up kingmaking Graveyard decks like Meren of Clan Nel Toth which will be delighted with you setting up their deck for reanimation, but you can still run targeted removal like Shred Memory to stop reanimation and leave enough cards in the graveyard for Drown in the Loch to be reliably awesome
"What distinguishes [this] from others, and makes it scarce, is that it was only released in the UK," he said
, which can immediately be equipped to Slash and searches for another Fusion when sent to the graveyard