63 x 88mm card sleeves Gamegenic Closable Inner 64x89 mm – Asmodee USA They come in a multitude of shapes Standard MTG Game Size Sleeves

If the player does, they may copy this spell and may choose a new target for that copy

This is not only useful to negate a powerful Monster on the opponent's Field but can also be used to negate its own effect so it stays on the Field and doesn't get shuffled away in the End Phase

If your opponent has no way at all to produce Blue mana it definitely gets a little more interesting, but this format has such good mana that I wouldnt count on them not having it

Taking the druid class as an example, attaching a class sets it at level 1 and grants the abilities of a level 1 class (whenever a land enters the battlefield under your control, you gain 1 life)

Lokhust Heavy Destroyer A harder-to-cast and more expensive artifact version of Fleshbag Marauder you can use twice that lacks zombie synergies

When you are designing a new mechanic for your set (or for your game in a general game-design sense), the first question you ask yourself is, "What is it?" You have to define the space it fills and figure out what role it plays in your design