The creature must have power 3 or greater as it enters the battlefield, or Elemental Bond’s ability won’t trigger. Static abilities that raise (or lower) a creature’s power are taken into account. However, you can’t have a creature with power 2 or less enter the battlefield and try to raise its power with a spell, an activated ability, or a triggered ability.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.