#2 Break Open (Onslaught) Why is it bad
While its exiled, its owner may cast it for 2 rather than its mana cost.) Whenever one or more creatures you control leave the battlefield without dying, you get an experience counter
Since this card is oversized and it doesnt shuffle into a standard deck, this card is normally just a collectors item rather than used in official matches
Magic has had what are called "modal double-faced cards" before that allow you to cast either side from your hand, but this is the first I know of that also allows you to pay a cost to flip it while the front side is already in play - in this case, you can play Peter Parker for two mana, and then pay four more on a later turn to have him transform
Flower Cardian Lightflare - Card Type : Monster - Attribute : DARK - Types : Warrior / Synchro / Effect - Level : 10 Stars * * * * * * * * * * - ATK / DEF : 5000 / 0 - Card Text : 1 Tuner + 4 non-Tuner monsters Once per turn, during either player's turn, when your opponent activates a Spell/Trap Card: You can negate the activation, and if you do, destroy that card
For players who frequent the same playgroups with the same decks week after week, introducing lock cards which target only one deck at the table will inevitably be taken as personal, even if just within the politics of threat assessment. Sleeving up these sorts of cards can feel like the start of a spiteful arms race, where players without the resources to change commanders regularly are sitting ducks against spells never balanced for main-decking against known opposition
