Untap all creatures you control.

Flying
Creatures with flying can't attack you or block creatures you control.
Whenever you cast a spell that targets one or more creatures, those creatures gain flying until end of turn.

Whenever a player casts a red spell, you may gain 1 life.

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.

Changeling (This card is every creature type.)
Vigilance

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

When this creature enters, search your library for a Forest card, put that card onto the battlefield, then shuffle.

Whenever this creature attacks, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)
: Reveal target face-down permanent. If it's a creature card, you may turn it face up.

: Add .

Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.

Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.

Flying
Inspired — Whenever this creature becomes untapped, each opponent discards a card, then each opponent mills a card.

Mikaeus enters with X +1/+1 counters on it.
: Put a +1/+1 counter on Mikaeus.
, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Flying
When Malfegor enters, discard your hand. Each opponent sacrifices a creature of their choice for each card discarded this way.

+1: Put a +1/+1 counter on each of up to two target creatures.
−2: Return target creature card with mana value 2 or less from your graveyard to the battlefield.
−7: You get an emblem with "At the beginning of your end step, create three 1/1 white Cat creature tokens with lifelink."

Look at the top four cards of your library. You may put a land card from among them onto the battlefield tapped. If you don't, put a card from among them into your hand. Put the rest on the bottom of your library in a random order.

(: Add .)

First strike
Whenever you cast your third spell each turn, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Flying
At the beginning of each end step, if you've drawn three or more cards this turn, create a 3/3 blue Angel creature token with flying.
: Until end of turn, whenever Lyra deals combat damage to a player, draw two cards.

Whenever this creature or equipped creature attacks, add an amount of equal to its power. Until end of turn, you don't lose this mana as steps and phases end.
Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)