mtg double masters borderless cards Karn Liberated (Toppers) [Double Extended Art] —Magistrates assistant MtG Trading Card Game Double

A creature's mana value is determined solely by the mana symbols printed in its upper right corner (unless that creature is the back face of a double-faced card, is a melded permanent, or is copying something else

When I asked why, they explained that since its printing we had introduced planeswalkers, which used loyalty counters, and the interaction between Doubling Season and loyalty counters was problematic for Standard

Class cards arent legendary so theres nothing stopping you from playing more than one of the same class card at a time

Stick to a mix that focuses on the two-, three-, four-, and five-cost creatures