With The First Chapter, Rise of the Floodborn, Into the Inklands, and Ursula's Return out of the picture, several cards that were staples in the game that didn't receive a reprint are no longer viable unless you're playing in the Infinity format
More players with access to cheap, decent decks makes the game better for everyone
On desktop platforms, you can hover over a card and right-click on it to flip through the dungeon options
Phyrexian Altar Part of why Phyrexian Altar is powerful is its ability to exchange creatures for mana
You can use cards like Sensei's Divining Top to manipulate the top card of your deck every turn, letting you dig deeper and deeper to find the best Angels you can
This makes Noble Hierarch a great inclusion in Voltron decks, which are focussed on buffing and protecting one very large and powerful attacker