From the Vault: Legends

Legendary Creature — Human Soldier

{T}: Target opponent discards two cards. Activate only during your turn, before attackers are declared.

Cao Cao, Lord of Wei

{T}: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

Captain Sisay

Legendary Creature — Treefolk Shaman

Each creature assigns combat damage equal to its toughness rather than its power.

Doran, the Siege Tower

Copy

Legendary Creature — Goblin Shaman

Haste
{T}: Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step.

Kiki-Jiki, Mirror Breaker

Legendary Creature — Human Warrior

Whenever another creature dies, you may put X +1/+1 counters on Kresh, where X is that creature's power.

Kresh the Bloodbraided

Legendary Creature — Human Cleric

Mikaeus enters with X +1/+1 counters on it.
{T}: Put a +1/+1 counter on Mikaeus.
{T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Mikaeus, the Lunarch

Legendary Creature — Elemental

You don't lose unspent green mana as steps and phases end.
Omnath gets +1/+1 for each unspent green mana you have.

Omnath, Locus of Mana

Faerie Rogue

Legendary Creature — Faerie Wizard

Flying
{X}{U/B}: Choose a color. Target opponent exiles the top X cards of their library. For each card of the chosen color exiled this way, create a 1/1 blue and black Faerie Rogue creature token with flying.

Oona, Queen of the Fae

Legendary Creature — Hydra Avatar

Protection from everything
If Progenitus would be put into a graveyard from anywhere, reveal Progenitus and shuffle it into its owner's library instead.

Progenitus

Legendary Creature — Human Knight

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
Whenever a creature you control attacks alone, it gains double strike until end of turn.

Rafiq of the Many

Legendary Artifact Creature — Sphinx

Flying
When Sharuum enters, you may return target artifact card from your graveyard to the battlefield.

Sharuum the Hegemon

Creatures you control have horsemanship. (They can't be blocked except by creatures with horsemanship.)

Sun Quan, Lord of Wu

Legendary Creature — Human Wizard

Flash
Creature cards you own that aren't on the battlefield have flash.
Each opponent can cast spells only any time they could cast a sorcery.

Teferi, Mage of Zhalfir

Legendary Creature — Eldrazi

When you cast this spell, destroy target permanent.
Indestructible
Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents of their choice.)
When Ulamog is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

Ulamog, the Infinite Gyre

Legendary Creature — Gorgon

Flying
{T}: Destroy target creature. It can't be regenerated.