The end step triggered ability won't trigger, and the cards won't be put into their owner's graveyard
Dragons is basically the commander Commander deck
This blend of survivability, control, and prolonged pressure solidifies Mega Venusaur ex as the premier Grass-type card in the current format
The Emperor, Hell Tyrant // Yawgmoth, Thran Physician does everything the archetype wants: controls the opponent's board, sacrifices creatures, draws cards
There might be some formats that change those rules, like Prerelease tournament that diverges from official rules such as: 40 cards in deck only 4 prizes no "only 4 Pokmon with the same name deck" rule I strongly recommend to play using the official rules at all times so you are not surprised when you attend a league or a tournament for the first time
He also deals one damage to each opponent when this triggers