As for the rest, we're looking at the natural design trend we've been seeing ever since Dark ConfidantDark Confidant: Creatures are easily removable, so it's easy to put powerful card advantage mechanics on them for cheaper than you'd see them otherwise
Naturia Sunflower X EARTH Level 2 [ Plant / Effect ] ATK 500 DEF 0 When your opponent's monster effect is activated (Quick Effect): You can Tribute 1 "Naturia" monster and this card
The most recent Pokemon Trading Card Game release has instantly proven to be a smash hit, in the form of the mobile exclusive Pokemon Trading Card Game Pocket
The idea was to have a cheaper machine that with aluminium chassis and more adaptable to the needs
Tevesh Szat, Doom of Fools [Best Sacrifice Value Engine] Tevesh Szat, Doom of Fools establishes control by turning expendable resources into cards
Pokemon TCG Pocket has all sorts of missions to keep you entertained for weeks if not months at a time