Gift a Treasure (You may promise an opponent a gift as you cast this spell. If you do, they create a Treasure token before its other effects. It's an artifact with ", Sacrifice this token: Add one mana of any color.")
Return target spell to its owner's hand. If the gift was promised, players can't cast spells this turn.

At the beginning of your upkeep, put a time counter on this enchantment.
Once each turn, you may pay rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on this enchantment.

Each player shuffles all permanents they own into their library, then reveals that many cards from the top of their library. Each player puts all artifact, creature, and land cards revealed this way onto the battlefield, then does the same for enchantment cards, then puts all cards revealed this way that weren't put onto the battlefield on the bottom of their library.

: Add . If you control an Urza's Power-Plant and an Urza's Tower, add instead.

, Say your middle name: This creature gains shroud until end of turn.
, Say an opponent's middle name: This creature gains flying until end of turn.

Gain control of target spell. You may choose new targets for it. (If that spell becomes a permanent, it enters under your control.)

Until your next turn, all lands you control become 2/2 Elemental creatures with reach, indestructible, and haste. They're still lands.

Trample
When Hugs enters, exile the top X cards of your library. Until the end of your next turn, you may play those cards.
You may play an additional land on each of your turns.

Flying
Whenever Niv-Mizzet deals damage to a player, you may draw a card.
: Niv-Mizzet deals 1 damage to any target.

When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies.

Kicker (You may pay an additional as you cast this spell.)
Spend only colored mana on X. No more than one mana of each color may be spent this way.
If this creature was kicked, it enters with X +1/+1 counters on it.

Creatures you control get +10/+10 and gain vigilance until end of turn.

As this creature enters, secretly note a word with six to eight letters.
: Target player who doesn't control this creature guesses the noted word or an unguessed letter in that word. If they guess wrong, put a +1/+1 counter on this creature. Any player may activate this ability.
When a player guesses the noted word or all of its letters, sacrifice this creature.

Whenever a nontoken creature enters,
Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

: Target blue or red creature gets +1/+0 until end of turn.

: Add one mana of any color that a land an opponent controls could produce.

: Creatures you control get +3/+0 until end of turn.

Flying
Sacrifice three other creatures: Transform this creature.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever Beregond or another Human you control enters, creatures you control get +1/+1 and gain vigilance until end of turn.

When this creature dies, create a 1/1 colorless Spirit creature token for each Zubera that died this turn.