When Stormkeld Curator enters, you may put any number of Aura cards from your graveyard and/or hand onto the battlefield attached to it.

When Jewel Mine Overseer enters, conjure seven cards named Seven Dwarves on top of your library. They perpetually gain "When this creature enters, draw a card." Then shuffle.
At the beginning of your upkeep, exile the top card of your library. You may play that card this turn.

Players can't gain life.
Celebration — At the beginning of your end step, create a Food token. If two or more nonland permanents entered under your control this turn, instead conjure a card named Food Fight onto the battlefield.

Deathtouch
When Underbridge Warlock enters, you get a one-time boon with "At the beginning of your end step, if three or more creatures died this turn, each opponent loses 5 life and you gain 5 life."
At the beginning of your end step, if you have a boon, you mill three cards, draw a card, and lose 2 life.

When Drover of the Swine enters, choose one —
• Conjure a card of your choice from the Three Pigs spellbook onto the battlefield.
• Return up to three target Boar creature cards with different names from your graveyard to the battlefield.