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
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
That seems unlikely, given that the much cheaper Porphyry Nodes sees very little play
The store's design makes an immediate impression
Seeds of Innocence is also just the better artifact board wipe if youre making a meta call and only have 1 free space in your deck
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