cards like iron maiden mtg MAGIC BOX BREAK: - Secret Lair! a:"iron maiden" · Scryfall Magic:

Let's start with Thassas

Rank: Fun Gogo, Mysterious MimeGogo, Mysterious Mime Gogo seems fun in combination with powerful attack triggers from cards like Etali, Primal StormEtali, Primal Storm and Godo, Bandit WarlordGodo, Bandit Warlord

Now, if you are playing with a smaller pod, this gets a little worse

Witherbloom Pestilence (Black/Green) Strategic sacrifices, life gain and drain Dina, Essence Brewer sacrifices creatures for card draw, but can also sacrifice other creatures to power up another card and gain more life

You can tap them to create a Disenchant, Braingeyser, Terroir, Shivan Dragon, Regrowth, or Black Lotus, and then you can cast it, but you have to pay the cost for it

The D23 promo version of Maleficent, Monstrous Dragon, and every other promo from the event are likely to maintain their value over time, making them solid investments if you happen to have a few in your collection.