Counterspell

Prismatic Lens

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Draw three cards, then put two cards from your hand on top of your library in any order.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Counter target spell unless its controller pays {X}.

Counter target spell unless its controller pays {3}.

Return target creature to its owner's hand. Untap up to two lands.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.