Spencer, Noble Poet

When Spencer, Noble Poet enters the battlefield, flip a coin. If heads, noncreature spells you cast cost {x} less, where {x} is equal to the amount of creatures target player controls. If tails, you are unable to cast noncreature spells until you tap {x} creatures.
{1}{u} Mill three cards, and untap Spencer Noble Poet
{2}{w}Tap Spencer, Noble Poet. Target Creature loses all abilities and becomes a 0/1 Concept until end of turn
{3}{r} Spencer, Noble Poet deals 1 damage to itself, and gains the abilitie