It has a low casting cost, and since many infect creatures are cheap to cast, it's likely you were able to get a few infect counters on your opponents, allowing for Yawgmoth to begin using its proliferate ability to add on more to them
The damp Psyduck released in Japan in a Glory of Team Rocket promo in April, and immediately became a pretty important card
Saheeli's second ability reduces only generic mana in the cost of the next spell you cast
Mezuki served as yet another means of summoning Zombies from the Graveyard, making the triggering of Card of Safe Return even easier than it already had been
How about a 13/13 Deaths Shadow for one black
Accordingly, if the player has Protection from everything, then: (702.16b) this player cant be targeted by anything