We need to get the ability to damage and target battles directly
Cards like Phyrexian Arena are also staples across formats, allowing you to have game against slower decks while slowly burying them in card advantage
Creatures can't support themselves, which is kind of sad, but it means that if the ability that tells you to support is found on a permanent, the support ability can't target that permanent
Ardyn, the Usurper Ardyn, the Usurper is one of the newest reanimator targets
Karador, Ghost Chieftain Ive piloted a Karador, Ghost Chieftain deck for many years, and there are a couple reasons this is considered a classic reanimator commander
Reunion of the House could see play in specific decks with the right synergy, but its high mana cost and limitations make it situational and potentially less impactful than other options