Things you Cannot do
At times you are going to come across the question, can I use Dark hole with no monsters on the field or can I Heavy Storm the Field with no Spell/Traps? Simple and Clean, no.
When you activate a card, there must be possible "targets" on the Field, Graveyard, Hand, or Deck.[Ex. 1]
You cannot activate Heavy Storm/Dark Hole
without destroying anything on the field.[Ex. 2]
You cannot activate E-Emergency Call
(or any searcher) if you have no HEROs(or any correct targets) left in the deck[Ex. 3]
You cannot activate Monster Reincarnation
, or any card that targets a card(s) in the graveyard, if you have no correct targets in the grave in the first place.[Ex. 4]
You cannot activate Upstart Goblin
if there are no more cards in your deck.
Just a plain and simple list of things you can do, wasn't expecting it to be long, but if you have any questions let me know.
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