Jace, the Mind Sculptor (Borderless) (Raised Foil) [Bloomburrow Commander] Bolton All Heroes and Weapons will

All Heroes and Weapons will only have effects that last for the remainder of the round

because everyone takes their turn at the same time

but remember

Each Castellax Battle-automata can be equipped with a pair of claw-like shock charges

Jace, the Mind Sculptor (Borderless) (Raised Foil) [Bloomburrow Commander] Bolton All Heroes and Weapons willSet: Bloomburrow Commander Type: Legendary Planeswalker Jace Rarity: Mythic Cost: {2}{U}{U} +2: Look at the top card of target player's library. You may put that card on the bottom of that player's library. 0: Draw three cards, then put two cards from your hand on top of your library in any order. 1: Return target creature to its owner's hand. 12: Exile all cards from target player's library, then that player shuffles their hand into their library.