Lance was really only good for one kind of deck
First of all, its big enough to matter
Sacrifice 4 Forests (and they have to be untapped to boot) and you get a 4/4 creature for basically mana that lost you four lands
#1 Ugin, Eye of the Storms Ugin, Eye of the Storms Tarkir: Dragonstorm, Mythic If youve been following Tarkir: Dragonstorm closely over the last few weeks, it may not come as a shock to see Ugin, Eye of the Storms as the most valuable non-serialized card you can open in Tarkir: Dragonstorm
The cost reduction for artifacts and creatures sacrificed earlier in the turn will apply even if you don't sacrifice any as an additional cost
To be fair, Enchantress is such a strong archetype that you don't really need to worry about your commander doing too much, but building around them does make the deck better