Blue/green is a ramp deck, which usually wants to play a slow, midrange game, yet here we have an aggro payoff for it
But two spells gets into breaking apart the plan territory
Combined with the frankly outrageous state of things back then (4 Ancestral Recall , anyone?) leading to prolonged game states and impasses, WotC decided that enough was enough and restricted Ivory Tower
Equipped creature has "If a creature dying causes a triggered ability of this creature or an emblem you own to trigger, that ability triggers an additional time." Equip The Prima Vista Rarity: Uncommon TYPE: Legendary Artifact SUBTYPE: Vehicle CMC: 5 Mana cost: USD: $0.14 EUR: 0.06 TIX: 0.03 EDHREC RANK: 19534 (5/3) Flying Whenever you cast a noncreature spell, if at least four mana was spent to cast it, The Prima Vista becomes an artifact creature until end of turn
That might sound like a lot, but its really just one problem
When WotC created the color separations, this sheet position was empty on the white ink layer, so the printing plates dont apply any white ink here