Pathrazer of Ulamog | Illustration by Austin Hsu Annihilator is a keyword ability on creatures, most closely associated with the eldrazi, particularly some of the gigantic ones, rather than the smaller drones
Link: Banish up to 3 cards from your opponent's GY
White decks typically have far more than the average number of enchantments, regardless of strategy, and Mesa Enchantress helps you keep the action going
Upon a Sliver entering the battlefield, an opponents creature is Goaded
This can be an oppressive deck to play against if you arent prepared for it, though the Japanese metagame has adapted fairly well with time
Another point in Doomskars favor is the ability to cast it for three mana on turn five, while still having mana left up to answer a follow-up play