Intrepid Hero - [Foil] Seventh Edition (7ED){T}: Destroy target creature with power 4 or greater. A fool knows no fear. A hero shows no fear.

Flying When Hanged Executioner enters the battlefield

Players can't gain life

Untap the chosen permanents you control

but scrapheaps have goblins

you may return Sosuke's Summons from your graveyard to your hand

even a mountain would break

There are 26 cards plus 10 possible basic lands can be opened in the promo packs

If X is 4 or more

{3}: Search your library for a Sliver card

Flash Commander creatures you control get +2/+2

the Risen Deep deals combat damage to a player

Geothermal Crevice enters the battlefield tapped