It might behoove you to carry around an Anya, Merciless Angel or some other big beater to swap into the deck should such a situation arise
For every two players youre able to attack, you get a cheap discover 4, which converts your efforts in combat into good card advantage
But there are definitely going to be times where this thing just sits dead in your hand
For casual Commander tables (power level 57), the Marvel precons will be perfectly competitive
However, if a single creature with lifelink deals combat damage to multiple creatures, players, and/or planeswalkers at the same time (perhaps because it has trample or was blocked by more than one creature), the ability will trigger only once
But its also by far the most risky and fair of Magic s S-tier mechanics, leading unwary players into collapses just as spectacular as the victories it can produce in expert hands