Not only does Big Game Hunter hit most of the creatures youre worried about from Eldrazi, it can be discarded and paid for using its madness cost
The board can explode, someone can fire off a Cyclonic Rift , or the combat step can turn into chaos
Like most commands, you get to choose two modes out of four, create a copy of target Elf, return two permanents from the graveyard to your hand, destroy a creature or enchantment, or, the big one, give a players creatures +3/+3 and untap them
If youre buying a rare Pokmon card as an investment, it will always be a gamble
Repeat this until you've gained enough life to kill everyone with the Aetherflux, and bish bash bosh, you have a combo deck
Another example is with Sagas