You get to pick your choice of either giving a creature you control flying, vigilance, or lifelink for a turn, depending on your needs
Youre ramping very quickly, and youre ramping with lands, so its resistant to sweepers and means you can flip Nissa, Vastwood Seer well ahead of time (turn one Elvish Mystic, turn two Nissas Pilgrimage, turn three Nissas Expedition, turn four Nissa, flip is an example of the fastest way to do it)
Set Number 257 Language Italiano Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Timeless, Vintage Not Legal Formats Alchemy, Modern, Pauper, Pioneer, Standard Rulings (6/8/2018) Together Forever's activated ability checks whether the target creature has a counter on it as the ability is activated and as the ability resolves
Need to kill your opponent dead