commander decks mtg 2020 and 1 reference card. Ikoria Commander

Whenever one or more creatures attack one of your opponents, those creatures gain menace until end of turn

This type of card just always does a great job of helping you win long games by giving you back your two best creatures from the graveyard

This is both a blessing and a curse, as it prevents both huge loyalty gains from happening but also prevents loyalty costs from doubling

However, more and more cards turn the discard of a card into a payoff, so if you pay it's sometimes better than Quick Study

While this does only work for permanents with counters on them, that is the entire plan of Counter Blitz

But if at least one counter remains on Ballista at all times, removing a counter from Ballista to ping itself will result in two more +1/+1 counters on the construct with the other replacement effects active