Slip Through Space

The job here is replacement-cost evasion: a single mana makes a creature unblockable and refills your hand in the same breath, so the spell costs you nothing in cards even when all it does is push three points through. That cantrip clause is what justifies the design. Unblockable as a one-shot effect is marginal, the kind of thing midrange and combat-trick decks shrug off, but staple it to a card draw and you have a free enabler that combo and tempo builds can run without taxing their count. The natural home is any creature whose connection matters more than the damage: an infect threat, a creature whose combat-damage trigger fizzles if it never lands a hit, a voltron piece carrying lethal commander damage. Devoid is the curiosity here. It strips the card's color so the spell reads as colorless in every zone, not just on resolution, even though casting it still asks for blue mana and its color identity stays blue. That was a recurring experiment of its era: pulling color off a card while leaving the colored pip in its cost untouched. The practical upshot is narrow but real. It gives the spell a foothold with effects that care whether a spell is colorless, while changing nothing about how it functions at the table: a one-mana cantrip you pay blue for, that happens to register as colorless to anything checking.