rare rare pokemon cards 5 Ultra Card Lot - V, Gx, ex, Assorted Variety and 1 legendary ulra rare card. The 10 Most Expensive Rainbow

Does the set have a high number of mythics or chase rares that see significant play in Legacy or Modern

The alternate name has no effect on gameplay. If you put Thrum of the Vestige in your Commander deck, you're in fact putting in a Lightning Bolt as far as singleton deckbuilding rules go

In the few games where your opponent does have a snow land, all youre doing is giving a single creature vigilance for two mana

Youve effectively sacrificed your Korlash, Heir to Blackblade to tutor up two Swamps

I would look to powerful sorcery speed removal for the future.

You might consider Stitch in Time for decks that frequently copy or rebuy spells