Haste (This creature can attack, and as soon as it comes under your control.)
: Target opponent creates X
Treasure tokens
(A Treasure is an artifact with ", Sacrifice this artifact: Add one mana of any color."), where X is the number of
Treasure tokens
(A Treasure is an artifact with ", Sacrifice this artifact: Add one mana of any color.") you created this turn.
Whenever an opponent casts a spell or activates an ability, if mana from a Treasure was spent to cast it or activate it, put a +1/+1 counter on target creature, then draw a card.