First is all the mass land destruction: Even mass destroyers of land types apply: Contamination and Infernal Darkness probably sit in here somewhere, as do Reality Twist and Hall of Gemstone Cards which make it more difficult for players to cast all their spells certainly go here as well
For example, if you attack with Incinerator of the Guilty and deal combat damage with it, use its triggered ability to deal damage, and then use Hard-Hitting Question to have it deal damage to another creature, it's still just one source even though it dealt damage three times during the turn
By choosing to replace your Active Pokemon with a Fossil Card, you can quickly discard the card and return your chosen Pokemon to its rightful place, the Active Spot
Im 80% sure that one is heavy, but the other one Im 50/50 on as it had a curve in the actual pack itself
This card is from the Shiny Treasure ex booster box shipped directly from Tokyo, Japan