Last Night Together
Most extra-combat spells hand you a blanket permission slip: the Aggravated Assault line, the Relentless Assault line, they grant an additional combat phase and let the whole board pile back in. This one narrows the doorway and pushes the payment elsewhere. Only two creatures get to swing in the bonus phase, but those two arrive transformed: untapped so they can go again, indestructible so nothing trades with them, hasted so a fresh drop qualifies, and four points of permanent stats spread across the pair. The vigilance is the tell that the design is looking past this turn, since the counters and the bodies persist even after the party ends. What it actually does is take two chosen threats and make them a two-turn problem: an alpha strike now, then a second strike from creatures that survive blocks and keep their new size into the next turn. The restriction that only the chosen creatures may attack in the second combat is what keeps this from being a generic overrun; you are committing to two haymakers rather than going wide. That focus rewards a build stocked with a small number of large, evasive, or trigger-dense attackers instead of a swarm, which is a genuinely different deckbuilding ask than the go-wide extra-combat effects it superficially resembles.
