Tyrant of Valakut

Surge only pays off when the turn is already in motion: as long as you or a teammate has already cast a spell this turn, the Dragon arrives two mana cheaper, which turns the mechanic into a tempo test rather than a flat discount. Cast for the full seven and you get a 5/4 flier that just shows up. Trigger surge and the same body lands for less while its enters-the-battlefield clause fires, throwing three damage at any target. That damage is the whole reason the card leans on surge instead of a plain kicker: the flier is identical either way, but the burn is gated behind the sequencing surge was built to reward, so the gap between the two lines is a board-affecting enter versus a quiet one. The design is a spell-density flag cashed out in red's most aggressive currency, and the multiplayer-friendly enabler (a teammate's spell counts too) points squarely at where surge was meant to live. What sets this apart from surge cards that only sweeten a stat line is that the conditional reward is interaction, not just numbers: three damage to any target is removal-grade, so the discounted cast can clear a blocker and stick an evasive threat in one motion. The incentive to chain a cheap spell into the Dragon is priced in damage the opponent has to answer, a sharper read on what the keyword was for than most of its cycle managed.