Rares are incredibly popular. While MTGs holy grail card, the Black Lotus, has continued to lead the way in terms of value with multiple record-breaking sales for hundreds of thousands of dollars - some within mere days of each other - the other cards in its Power Nine, a series of nine powerful banned cards from the TCGs very first sets, have also appeared more frequently at auction, raising more money than ever
Think of it this way: If you have to physically move a die to represent counters on a permanent changing, it counts as putting counters on that card
If it's a Unicorn, put two +1/+1 counters on it instead
The last card in the sideboard, Torpor Orb, is for decks that play creatures with enters the battlefield effects
With the set being brand new, its also possible that some of these cards have more potential than is readily apparent
If you have some aura/enchantment interaction, maybe you would include one