Creatures you control have myriad.

Destroy all nonland permanents.

Enchant player
Creatures enchanted player controls lose all abilities and have base power and toughness 1/1.
Enchanted player can't activate abilities that aren't mana abilities or loyalty abilities.

Flying, first strike, vigilance
Whenever Parhelion II attacks, create two 4/4 white Angel creature tokens with flying and vigilance that are attacking.
Crew 4

Assist (Another player can pay up to of this spell's cost.)
Exile all nonland permanents.

Return all artifact and enchantment cards from your graveyard to the battlefield.
Miracle

Redistribute any number of players' life totals. (Each of those players gets one life total back.)

Flying, vigilance, trample
Whenever you attack, other creatures you control get +2/+2 and gain indestructible until end of turn.
Unearth — Pay eight .

Indestructible

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after V.)
I, II, III, IV — Create three 2/2 white Knight creature tokens.
V — Ultimate End — Other creatures you control get +2/+2 until end of turn. Put an indestructible counter on each of them.

This spell costs less to cast for each creature on the battlefield.
Destroy all creatures.

Flying, double strike, vigilance, trample, indestructible

Exile the top eight cards of your library. You may put a land card from among them onto the battlefield. Until end of turn, for each nonland card type, you may cast a spell of that type from among the exiled cards without paying its mana cost.

Flying
Whenever this creature deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.

Flying
Project Image — When this creature enters, create two tokens that are copies of target noncreature permanent, except they're 3/3 Dragon creatures in addition to their other types, and they have flying.

If an opponent has no cards in hand, this spell costs less to cast.
Flying

Target player takes an extra turn after this one. Shuffle Beacon of Tomorrows into its owner's library.

When Brinelin enters and whenever you cast a spell with mana value 6 or greater, you may return target nonland permanent to its owner's hand.
Partner

Emerge
When this creature enters, if you cast it, return each non-Dinosaur creature to its owner's hand.

Whenever an opponent casts a spell, counter that spell and put a depletion counter on this enchantment. If there are three or more depletion counters on this enchantment, sacrifice it.
Cycling
When you cycle this card, you may counter target spell.

When this creature enters, return each other creature you control to its owner's hand.

Delve
Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.

: Greater Morphling gains your choice of banding, bushido 1, double strike, fear, flying, first strike, haste, landwalk of your choice, protection from a color of your choice, provoke, rampage 1, shadow, or trample until end of turn.
: Greater Morphling becomes the colors of your choice until end of turn.
: Greater Morphling becomes the creature type of your choice until end of turn.
: Greater Morphling's expansion symbol becomes the symbol of your choice until end of turn.
: Greater Morphling's art becomes by the artist of your choice until end of turn.
: Greater Morphling gets +2/-2 or -2/+2 until end of turn.
: Untap Greater Morphling.

Flying
When this creature enters, you may return up to two target creatures to their owners' hands.

Convoke
Ward
When this creature enters, look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

Discard a card: Return Jadzi to its owner's hand.
Magecraft — Whenever you cast or copy an instant or sorcery spell, reveal the top card of your library. If it's a nonland card, you may cast it by paying rather than paying its mana cost. If it's a land card, put it onto the battlefield.

When this creature enters, return all other nonland permanents to their owners' hands.
Unearth

Affinity for artifacts
When Krang enters, if you have fewer than four cards in hand, draw cards equal to the difference.
Krang gets +1/+0 for each other artifact you control.

You may look at the top card of your library any time.
You may play lands and cast spells from the top of your library.
Once during each of your turns, you may cast a spell from your hand or the top of your library without paying its mana cost.

Affinity for artifacts
Flying

Kicker
When Slinn Voda enters, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.