Understanding rarity and production is a huge step, but it's just one piece of the puzzle
It only gets a discount when the player is aggressive, and its all in service of making everyone else aggressive, whether they like it or not
In terms of specific synergies with the new cards, there are a number of notables
This combo works particularly well, because both pieces are colorless, meaning you can technically pull off the win regardless of your decks color combination
This card essentially reads, Choose target opponent you and that opponent each draw a ludicrous amount of cards. It unbalances games horridly, and has no place in a social format
The trigger event doesn't have to specifically refer to "creatures." In these cases, the trigger event may also refer to something being "put into a graveyard from the battlefield." For example, if the equipped creature or an emblem you own has an ability that triggers "whenever an artifact is put into a graveyard from the battlefield," that ability would trigger twice if an artifact creature died