As a rule of thumb, if an effect instructs a player to look at or reveal a card before it's put into its owner's graveyard, it's unlikely to have received errata
However, if a single creature you control with lifelink deals combat damage to multiple creatures, players, planeswalkers, and/or battles at the same time (perhaps because it has trample or was blocked by more than one creature), the ability will trigger only once
The D23 Collection cards feature expanded artwork that extends to the edge of the cards, revealing more of the scenery
Which makes sense when you look at its other printings: the cheapest version from Baldur's Gate is worth close to $100, for a card that is one of Magic's best dragons, an amazing treasure card, and a cEDH staple
You'll be grumpy when you pull this from a pack