There are a decent number of ways to give deathtouch and infect, and it lets you kill people straight out with only 5 creatures, which isn't that much in the grand scheme of things
Strategic bidding often beats retail when demand temporarily dips
They're equally satisfied by an artifact you sacrificed to pay a cost, a creature you controlled that was destroyed by Sephiroth's Intervention, or an enchantment you returned to a player's hand with Cryptic Command
And, although he doesn't affect the other Duck Tales cards, they can affect him
A lynchpin in White Weenie aggro decks of the time, Adanto Vanguard was played alongside another Vampire card (in the loosest sense), Legions Landing
A whole esports scene to qualify for in-game