If the turn player summons a Link monster with one or more active markers, THEN you can special summon other extra deck monsters to the zones indicated by the active markers (as well as main deck monsters)
"Shaddoll" still sees play even to this day, with recent support in the "Shaddoll Showdown" structure deck with the "Invoked" engine
Must be Special Summoned (from your hand) by sending 2 "Gadget" Monster Cards from your hand and/or face-up field to the GY
Double-Edged Sword Technique can spawn another Shi En, or convert a Kizan into a Trishula to blow out your opponent
however, it might not stay that way for long
In addition to the same losing conditions that exist in a normal game of Magic , each player starts the game with 40 life points instead of 20, and a player may lose if they are dealt 21 or more total points of combat damage from a single Commander throughout the game