Trespasser il-Vec
Most evasion is a fixed property: it sits on the card and the opponent either has the answer or does not. Here it is a switch you flip, paid in cards from your hand, available only for the swing you mean to land. That converts a ground creature that would otherwise stall into a shadow threat on demand, with each activation costing real material rather than drawing into more. The 3/1 frame keeps the bargain fair: power enough to threaten, toughness so thin that a single ping ends it, which means whatever you pitch to push three damage through has to be worth less than three damage. Where shadow usually wants you to assemble a separate squad the opponent's creatures simply cannot reach, this design wants timing: a body that everyone can trade with most of the time, slipping out of reach for exactly one attack before the effect wears off and it settles back to earth. The quieter consequence is that the discard has no mana cost and no cap, which makes the creature a repeatable outlet in its own right. For a deck built around stocking the graveyard or firing discard payoffs, the evasion is almost a side benefit; the engine is the free pitch, available every turn, fueling whatever the hand is built to do once the card leaves play.

