Irresistible Prey

Forcing a creature to be blocked is a Lure effect stripped down to a single blocker requirement and stapled to a cantrip, and that pairing is the whole design logic. Lure-style cards have always asked for a payoff already on the board: a giant trampler, a deathtouch creature, a removal-by-combat enabler. The problem with that genre is that when the synergy piece isn't in hand, the card does nothing and rots. Drawing a card solves the dead-weight problem at the floor: even with no plan, you spend one green mana, replace the card, and have lost nothing but a turn's worth of tempo. With a plan, the same one mana forces your deathtouch attacker into a trade, or drags a valuable blocker into a fight it can't win. The compulsion is sorcery-speed and lasts only the turn, so it's an attack-step tool, not a combat trick: you cast it, then swing into the constraint you just created. What the cantrip really buys is permission to run the effect without building your whole deck around it, the rare forced-block card you can play because it's cheap insurance rather than a combo piece you're praying to draw alongside its partner.