Target blocking or blocked creature you control gets +1/+1 and gains first strike until end of turn. If it has a hat, it gains double strike until end of turn. If you and that creature each have a hat, the creature gains triple strike until end of turn.
"Behold the power of my hat and the ghosts of two other hats I used to own!"
When Impounding Lot-Bot enters, you may say "INCARCERATE!" in a robot voice. If you do, exile another target artifact or enchantment until Impounding Lot-Bot leaves the battlefield.
As Katerina of Myra's Marvels enters, choose a letter. Whenever you cast a spell whose name begins with the chosen letter, create a white 2/2 Cat creature token with flying. Partner (You can have two commanders if they both have partner.)
First strike As this creature enters, you may put a name sticker on it. This creature has protection from names that start with the same letter as a name sticker on it.
The lucky armor stopped lightning and lasers, but sadly, also love.
As an additional cost to cast this spell, choose A through M or N through Z. Destroy each creature whose name begins with a letter in the chosen range.
"Anna and Blaine said the ride was awesome. Yolanda and Zachary aren't back yet."
Exile target creature you control, then return it to the battlefield under its owner's control with X +1/+1 counters on it, where X is the number of mirrors on walls you can see from your seat.
With enough showmanship, even mundane items like playing cards or molecular teleporters can produce a mesmerizing spectacle.
When Pin Collection enters, you may put an ability sticker with ticket cost X or less on it without paying that sticker's ticket cost. Equipped creature gets +1/+1 and has all abilities of ability stickers on Pin Collection. Equip {2}
Auras and Equipment you control attached to Solaflora, Intergalactic Icon affect other creatures you control as though those Auras and Equipment were attached to them. Counters and stickers on Solaflora affect other creatures you control as though those counters and stickers were on them.
Parade! — At the beginning of combat on your turn, choose creatures you control one at a time until each creature you control has been chosen. Each of those creatures gets +1/+1 until end of turn for each creature chosen before it.
When Surprise Party enters, yell "Surprise!" and put onto the battlefield any number of printed Clown Robot tokens that aren't touching each other, that you hid on the battlefield before you cast Surprise Party, and that weren't spotted by an opponent before you cast Surprise Party. Robots you control get +1/+0 and have vigilance.
Flying, vigilance When Sword-Swallowing Seraph enters, you may put a name sticker on a nonland permanent you own. {1}{W}, {T}: Put a +1/+1 counter on another target creature with a name sticker on it. Activate only as a sorcery.
{T}, Tap an untapped creature you control that has a hat: Tap target creature.
"'Technologically-Advanced People-Pleasing Entertainment Robot', eh? Nice hat. Would be a shame if something happened to it." —"Brims" Barone, midway mobster
Flying Trapeze Artist enters by being flipped from a height of at least one foot (about 0.3 meters). If it lands face down or didn't turn over completely at least once during the flip, return it to its owner's hand.
Heinrich catches the trapeze only about half the time, but he looks so good falling.
You get seven {TK}. Choose an inanimate object you own from outside the game. Put a power and toughness sticker on it. You may also put a name sticker, an art sticker, and/or an ability sticker on it. Put it onto the battlefield as a creature token.
When Astroquarium enters, you may put an art sticker on it. {1}, {T}: Until end of turn, target creature becomes a blue Shark with base power and toughness 4/4. If the cracks in Astroquarium's art are completely covered, that creature becomes a blue Octopus with base power and toughness 8/8 instead. Activate only as a sorcery.
Flying When Baaallerina enters, you may put a name sticker on a nonland permanent you own. {2}{U}: Another target creature with a name sticker on it gains flying until end of turn.
Protection from Robots {1}, {T}: The next time target player would roll one or more dice this turn, instead they roll that many dice plus one and you choose one of those rolls to ignore.
Myra bought beetles because they were cheaper than rubber ducks. Now the infestation is her largest expense.