Ignoring summoning sickness on your Wizards helps you dig for whatever answer you need at a given time, or to just refill your hand once you've cast a bunch of spells right before the end of your last opponent's turn
If you are building for the game against a mill deck, you've sacrificed the efficiency of your deck against every other match
Since these sets were printed in small numbers, players had been able to boast about their collection, and it really was impressive if you managed to get a hold of a decent chunk of these sets
Since Urborg, Tomb of Yawgmoth makes all lands into Swamps, so long as someone at the table has a copy in play, you can recur Bubbling Muck and untap lands as often as your cards will allow before casting a spell like Exsanguinate or Torment of Hailfire to win
And an extra Gush will put you ahead by four cards for little to no mana
Grixis is known for its removal spells, card draw, and mighty planeswalkers, but with creatures getting more and more powerful with every new MTG set, even this control and spell-heavy color combination gets fearsome creatures
