To determine a spell's total cost, start with the mana cost (or an alternative cost if another card's effect allows you to pay one instead), add any cost increases (such as kicker), then apply any cost reductions
While Welder is never swapping Wurmcoils and Battlespheres in and out of play in affinity it still does far far too much for a one mana card
If you do, return him to the battlefield transformed under his owners control
Her -1 can exile two cards from your library and cast one, which seems stronger in 100-card formats like Commander and 300 card ones like Five Color than 60 or 40 card formats
The most valuable Charizard cards are defined by early print history, perfect grades, provenance, and confirmed or widely reported sale records that separate genuine market benchmarks from speculative listings
Most of the time this is just an over cost Memnite