Wellwisher - [Foil, Retro Frame] Onslaught (ONS){T}: You gain 1 life for each Elf on the battlefield. "Close your ears to the voice of greed, and you can turn a gift for one into a gift for many."

you may look at the top card of your library

then sacrifices X lands

it deals triple that damage to that permanent or player instead

create a 2/2 blue Drake creature token with flying

When Man-o'-War enters the battlefield

) Exile any number of target creatures that have -1/-1 counters on them

The bad news is

Whenever Saber Ants is dealt damage

{2}: Untap target artifact creature

({T}: Add {U} or {R}

sacrifice it at end of combat

Search your library for up to four cards with different names and reveal them