At the Modern Open at SCG Indianapolis, Oliver Tomajko, for example, finished highest among Urza decks with Urza Ascendancy, as a Jeskai deck that splashed green for four sideboard cards, three of which were Oko
On the tabletop, card mechanics essentially let you reenact this entire scene
That means that no Eldrazi or fancy artifact creatures will be left standing for long
Then, you may add 1 card from the top or bottom of your Life cards to your hand
The dungeon cards wont need to be drafted or included as part of either players deck, starting alongside each player's sideboard without taking up a sideboard slot
The card is good, and works well with high-power creatures or dice-manipulation cards like Barbarian Class