Elspeth, Sun's Champion - [Foil, Promo] Secret Lair 30th Anniversary Countdown Kit (SLC) Blink (Put the top three cards

(Put the top three cards of your library into your graveyard

Any time you could mulligan and Serum Powder is in your hand

Squall Line deals X damage to each creature with flying and each player

Boss's Chauffeur enters the battlefield with a number of +1/+1 counters on it equal to one plus the number of other creatures you control

Elspeth, Sun's Champion - [Foil, Promo] Secret Lair 30th Anniversary Countdown Kit (SLC) Blink (Put the top three cards[+1]: Create three 1 1 white Soldier creature tokens. [3]: Destroy all creatures with power 4 or greater. [7]: You get an emblem with "Creatures you control get +2 +2 and have flying."