You can easily make a game winning amount of mana for your deck from this simple tap from fueling an X spell like Jaya's Immolating Inferno or Exsanguinate to dropping stuff like Eldrazi Titans and Blightsteel Colossus and then equipping with Greaves and winning
This card is sure to be a popular leader in Magic's most popular format, Commander, as it will let you cheat all sorts of big and expensive legendary creatures into play far earlier than expected
This bird pirate can start dealing some pretty big damage, too
Shirei, Shizos Caretaker Shirei, Shizos Caretaker brings back any creature with power 1 or less that died under your control at the end of every turn
Commander 2020 has five decks, so the total number of points given out increased from 100 to 150
As someone who previously tried to engage with Magic under a severe time crunch, skipping the arduous legwork of sideboard construction to get to the fun of winning games makes lots of sense to me