Normally when I play a creature, the rules say I get a certain power and toughness for the mana Ive spent and I can use that card to attack or defend
Most people fall into the trap of building their decks around their spells and worrying about the mana later. So many people post decklists that play three, four, or even five colors, and literally leave the manabase blank
2017-11-17 If a Dragon entering the battlefield causes Dragon Tempests second ability to trigger but leaves the battlefield before that ability resolves, that Dragon still deals damage
A deck builder is like a carpenterthe better the tools the carpenter has access to, the more complex projects he or she can undertake
Thats a pretty big difference if youre looking for the 99th card of your budget Anowon, the Ruin Thief or Yuriko, the Tigers Shadow Commander decks
The problem is all to do with multiple small issues stacking up