final fantasy cactus mtg has a Cactuar that attacks for 10,000 damage 000 Needles — Whenever this creature attacks Jumbo Cactuar: Final Fantasy VIII
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Making Constructs with this colorless enchantment can also be a very powerful strategy, especially in decks designed to get lands back from the graveyard
It's super wordy, is what I'm saying - but not actually horribly complex

Geralf's Messenger and Hancock, Ghoulish Mayor have extra text beyond undying, but even Butcher Ghoul will do if undying loops are your primary gameplan

7 Everybody Lives