Even though he wasn't aggressively costed like most of the contemporary legendary creatures, Baron Sengir was the closest thing that Vampire tribal had for a lord back then
The need to not miss land drops early would leave both decks with lots of land and not that much to do with it, allowing a player with Goblin Trenches to pressure the opponent slowly, go all-in or do anything in between and usually make their choice work
With many decks easily costing $1000 or more, playing Magic at a competitive level is a lot easier said than done
For this reason, we need to do everything to prevent our opponent from getting ahead on lore, which means challenging
Low-cost utility creatures like this are foundational for aggressive strategies, particularly when supporting top-tier vampire commanders in MTG that rely on early board presence and consistent resource flow
Two of them made it into the enchanted rare camp