cards like earthquake mtg Earthquake deals X damage to each creature without flying and each player. Earthquake Dragon | Commander Legends:

Merfolk Trickster Theres nothing more satisfying in Modern than to be attacked by a Tarmogoyf, only to eat it with your 2-mana Merfolk Trickster

It can be pretty difficult not to draw some extra cards of Vega, so definitely keep her in mind when you're building a deck that uses more than just your hand as a resource

If you have schemes or Planechase planes from the multiplayer sets, I recommend doing an inventory and seeing if any are worth buylisting or throwing up on eBay/TCGplayer

If your budget allows for 5-8 of them, chances are good that you'll get great use out of them, especially in a 3 or more color deck

For five colorless mana, which reduces by one for each Vampire you control, you can tap and sacrifice Voldaren Estate to create a Blood token