First, you need enough mana that comes from sources that enter the battlefield untapped, like basic lands or most mana rocks
It reads like a card with limited use that can cause mayhem in the right situation, which fits what Red is supposed to do
It seems like most new white cards that come out are automatically compared to Smothering Tithe, which does a disservice to many of the awesome cards that weve seen over the past few years
First, flicker one of your critters, then play this during post-combat, and destroy one of your opponent's creatures
At this point most players will start wondering, "What do they have to stop what I'm planning?" Abeyance takes away all that worry, while greatly increasing the chance of victory during an attack (or defense) by preventing the opponent from playing "instants, interrupts, sorceries, or abilities requiring an activation cost"