Dawn of Hope lets you pay two generic mana to draw a card any time you gain life, allowing you to draw as much as you can afford, plus creates Soldier tokens with lifelink
There will often be times when you have Massacre Girl, Known Killer and Sheoldred, the Apocalypse in your hand on turn 4 and youd rather cast this
As far as Im aware, theres no super obvious combo ready to go with Emrakul, but we know people will keep trying for it
Similarly, had I on turn 1 attached a water energy to my benched Staryu instead of my active Goldeen, I would have been prevented from progressing when I ended the turn instead of when I attached the energy card
The magical school for spellcasters sorted into colleges based on how they practice their craft
You may put them on the stack in whichever order you want.