List of Acorn mechanics
Acorn mechanics, formerly known as silver-bordered mechanics, are mechanics that are exclusive to Acorn cards. So far, these have only been printed in the Un-sets (Unglued, Unhinged, Unstable, and Unfinity). These sets are designed to allow for cards and mechanics that cannot work or be printed under the official rules, and as such, these mechanics have no formal definition beyond that printed on the card. Note that Assemble was first featured as a joke in black bordered Future Sight, but its current rules are strictly Acorn.
Acorn mechanics
- Dexterity cards — originally a black bordered mechanic, now exclusively acorn.
- Die rolling — of standard six-sided dice.
- Outside assistance
Keyword abilities
- Alpha strike
- Art menace
- Augment
- Blurry
- Denimwalk
- Gobble
- Just a second
- Last strike
- Loose lips
- Rangeling
- Super haste
- Triple strike
- Typelink (Squirrellink)
- Undeathtouch
Keyword actions
Ability words
Mana symbols
- Half mana — {½}, {½R}, {½W}
- Additional variable mana cost —
and 
(One black-bordered card, the Beatdown box set printing of Fireball, used the symbol as well. However, the Oracle text for the card uses only 
.) - Large amount of mana —
and 
(Except for infinity mana the other two just provide, which are extraordinarily large values but would otherwise function in black border.) - Infinite amount of mana —
Other mechanics
- Art matters, a term for cards that care about properties of a card's art.
- Environmental influence, a term for cards that care about the play environment (time of day, what you can see from your seat, etc.)
- Wordy, a term for cards with four or more lines of rules text.
- Coolness, a way to upgrade a card.
