Vazi, Keen Negotiator (Extended Art) [Streets of New Capenna Commander]

Haste
{T}: Target opponent creates X Treasure tokens, where X is the number of Treasure tokens you created this turn.
Whenever an opponent casts a spell or activates an ability, if mana from a Treasure was spent to cast or activate it, put a +1/+1 counter on target creature, then draw a card.