search mtg card the Premises | Modern Horizons 2 cast it without paying its mana cost.) Search for Glory

If you have completed a dungeon when Caves of Chaos Adventurer's last ability resolves, you can only play the exiled card without paying its mana cost

Treefolk Harbinger While most Treefolk Commander decks will surely be playing myriad mana-ramping one-drops, such as Wild Growth, Utopia Sprawl or the nominal mascot card of the Commander format Sol Ring this one-drop Treefolk Druid from 2007s Lorwyn set might be the best one-drop of all in a Treefolk build

They are unconditional untapped dual lands, though to make mana with them, you do have to pay life

However, this isn't much of a downside when you have access to easy color fixing to make sure you can always cast your spells

To its detriment it's a sorcery, which places it further down this list than another draw X cards blue card-drawing card