Preserved Tower

Preserved Tower enters the battlefield tapped.
{t}: Add one mana of any color.
{t}: Add {c}{c}. Spend this mana only to cast
Support spells or activate abilities of
Supports.
10 XP: Supportcycling {3} (Discard this card:
Search your library for a Support card, reveal it,
put it into your hand, then shuffle.)