Cyber Medic

Haste, Reach, lifelink
When the Cyber Medic enters the battlefield, the chosen player heals {x} amount of health, where {x} is the number of extra mana spent.
{w}{w}{w} Buff (Instant, the target creature gets +1/+1 until the end of the turn)
{w}{w}{w} Debuff (Instant, the target creature gets -1/-1 until the end of the turn)