It's effect is on-going, and you can build around it with artifact creatures or things you can't target (like Protection from Black) or indestructible stuff that can't be destroyed at all
What I found, however, was mostly a selection of Power, Dual Lands, and Old School cards signed by the artists themselves
Fiery Impulse is there against other small creature strategies or as an upgrade to Wild Slash when there are a relevant number of three-toughness creatures to kill
It takes a while before a deck with the number of nonbasic lands tri-color decks would naturally play would get to stop sacrificing lands, and many of even your similarly colored opponents will be able to keep operating for a similar amount of time unless you bust this out right away
Might as well rack up some scry triggers for free when they do
For controlling strategies, white and black tend to be good colors to pair with it