Ilharg, the Raze-Boar

You choose which player, planeswalker, or battle the new creature is attacking. It doesn't have to be attacking the same player, planeswalker, or battle that Ilharg is attacking.

If the new creature has an ability that triggers at the beginning of the end step, that ability will trigger and resolve even if the creature is returned to your hand during the end step before that ability resolves.

If you control another player's God when it dies, you decide whether to put that card into its owner's library.

If an effect exiles the God and immediately returns it to the battlefield, its last ability triggers but will have no effect. However, if an effect exiles it and would return it to the battlefield at a later time, the God's ability may return that card to its owner's library first. If it does, the effect that exiled it won't return it later.

If one of these Gods dies and it's your commander, you may put it into the command zone before its ability puts it into your library. If you save your commander this way, it won't put it into your library. The same is true if it would be exiled.

In a multiplayer game, if you put another player's God onto the battlefield under your control, it will be exiled as you leave the game. If you were still the controller of that God, you would control its triggered ability but you have left the game; that ability won't resolve and the card remains in exile. Similarly, if you lose the game at the same time that another player's God that you put onto the battlefield is destroyed, it remains in its owner's graveyard.