Its a card that can draw three cards on a kicker, and you can blink it or just delve eight cards from your graveyard to do it again
And since, again, the Jar costs literally nothing, it can also support combo decks, Storm decks, and basically any strategy that just wants more free spells at any given time
If a creature gains one of the listed abilities before Oddric's triggered ability resolves, perhaps due to another ability that triggered at the beginning of combat, then creatures you control will gain that ability
From rare editions to exclusive prints, these cards are worth more than some people's annual salary
For Boom, it requires you to target a land you control to be destroyed - however, indestructible lands can be targeted, so it sticks around while an opponent loses one of theirs
Id recommend just buying singles from this set because it doesnt pay off well when ripping