Personally, though, I've long wanted to build a mountains-matter mono-red deck with cards like Koth, Fire of Resistance, but there aren't really enough relevant cards to make it work
There are plenty of reasonable ways to convert Energy into value, like Longtusk Cub
With MTG having brought in so many new players and an awful lot of mainstream attention, thanks to sets such as Lord of the Rings, Doctor Who and Fallout, amongst others, in the last year or so, publishers Wizards of the Coast have made it easier than its been for a long time to actually pick up a single type of booster pack and play, or collect, the way you want to
Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1
The Seriema comes to mind as a potential home for Search for Dagger, assuming you can reliably Station The Seriema and start attacking