Similar to how the sport of "running" has different "events" such as the 100m, 200m, or 400m, the game of Magic also has different formats decided by Wizards
As mentioned earlier, fighting isnt attacking or blocking either, so even if both creatures have trample, no excess damage will be dealt to either player
This five mana white 3/3 with flying and double strike grants you hexproof
One example is Heroic Intervention, a defensive green instant that grants hexproof and indestructible to all friendly creatures
Playing it is an engaging gamble: Do you really think your threats are so much better than your opponents that you can get away with giving them a free Show and Tell
Some abilities trigger whenever you "expend N," which happens when you've spent N total mana on casting spells during a single turn