: Add one mana of any color.
, : Tap target artifact.
, : Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
, : Goad target creature. (Until your next turn, it attacks each combat if able and attacks a player other than you if able.)

Spend only mana produced by basic lands to cast this spell.

Deathtouch
At the beginning of your end step, investigate for each opponent who lost life this turn.
Whenever a Clue you control is put into a graveyard from the battlefield, create a 1/1 white and black Spirit creature token with flying. This ability triggers only once each turn.

Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.

Target opponent exiles the top X cards of their library face down. You may look at and play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any type to cast it.

Flash
Flying
Whenever an artifact creature you control deals combat damage to a player, draw a card.

, : Search your library for a card, put that card into your hand, then shuffle.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

You may cast up to two instant and/or sorcery spells with total mana value 6 or less from your graveyard and/or hand without paying their mana costs. If those spells would be put into your graveyard, exile them instead. Exile Invoke Calamity.

Flash (You may cast this spell any time you could cast an instant.)
Vigilance
Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)

Enchant creature
Enchanted creature gets +2/+2, has first strike and vigilance, and is a legendary Soldier in addition to its other types.
Whenever enchanted creature attacks or blocks, attach any number of target Equipment you control to it.

When this creature enters, create a 1/1 colorless Thopter artifact creature token with flying.
, Sacrifice an artifact: Choose one —
• Exile the top card of your library. Until the end of your next turn, you may play that card.
• Target creature gets +2/+0 until end of turn.

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Whenever you cast a historic spell, investigate. This ability triggers only once each turn. (Artifacts, legendaries, and Sagas are historic. To investigate, create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
Doctor's companion (You can have two commanders if the other is the Doctor.)

When this artifact enters, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.")
, , Sacrifice this artifact: Return up to two target creature cards from your graveyard to your hand.

Protection from black
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +3/+3 and has flying.

Enchant creature
Enchanted creature has flying, first strike, and vigilance.

: Add .
, : Exile target attacking creature an opponent controls. At the beginning of the next end step, return it to the battlefield tapped under its owner's control.

Flying
When this creature dies, you may put it on top of its owner's library.

You may cast up to one target instant card and/or up to one target sorcery card from your graveyard each with mana value X or less without paying their mana costs. If a spell cast this way would be put into your graveyard, exile it instead. If X is 10 or more, copy each of those spells twice. You may choose new targets for the copies.