Gryffindor Common Room

(When this card enters the battlefield pay its build cost
and attach it to a land you control or sacrifice it. That
land is indestructible. This card's abilities may only be
activated when that land becomes tapped)
Build: Tap an untapped red creature you control
{t}: Add {r}, if this mana is used to cast a
Gryffindor creature they gain haste.