Enchant creature you control
When this Aura enters, create a 1/1 white Warrior creature token with vigilance.
Enchanted creature gets +1/+1 and has first strike. (It deals combat damage before creatures without first strike.)

, : All damage that would be dealt to you this turn by target attacking creature is dealt to this creature instead.

Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control. (Auras with nothing to enchant remain in graveyards.)

Create a 1/1 green Saproling creature token for each card in your hand.

Flying
Whenever Korvold enters or attacks, sacrifice another permanent.
Whenever you sacrifice a permanent, put a +1/+1 counter on Korvold and draw a card.

All creatures get -3/-3 until end of turn.
You may cast a spell with mana value 3 or less from your hand without paying its mana cost.

Rose Tyler gets +1/+1 for each time counter on it.
Bad Wolf — Whenever Rose Tyler attacks, put a time counter on it for each suspended card you own and each other permanent you control with a time counter on it.
Doctor's companion (You can have two commanders if the other is the Doctor.)

Flying
When Silver Surfer enters, you may search your library for a card named Galactus, Devourer of Worlds, reveal it, put it into your hand, then shuffle.
Whenever Silver Surfer deals combat damage to a player, until the end of your next turn, target creature attacks that player each combat if able.

Whenever a creature you control with flying enters, it gains haste until end of turn.
Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.

Defender
, Sacrifice this creature: Target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Destroy target creature. A creature destroyed this way can't be regenerated.
Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.

(Gain the next level as a sorcery to add its ability.)
Spells your opponents cast during your turn cost more to cast.
: Level 2
Creatures you control get +1/+1.
: Level 3
Whenever you attack, until end of turn, target attacking creature gets +1/+1 for each other attacking creature and gains double strike.

: Gain control of target creature for as long as that creature is enchanted.

The Watcher in the Water enters tapped with nine stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Whenever you draw a card during an opponent's turn, create a 1/1 blue Tentacle creature token.
Whenever a Tentacle you control dies, untap up to one target Kraken and put a stun counter on up to one target nonland permanent.

Landfall — Whenever a land you control enters, double the power of target creature you control until end of turn.
Warp (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Jaya's Immolating Inferno deals X damage to each of up to three targets.

Enchant land (Target a land as you cast this. This card enters attached to that land.)
Enchanted land is an Island.

Whenever this creature deals combat damage to a player, draw a card.
Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Flying
Whenever this creature deals combat damage to a player, choose one —
• That player returns a permanent they control to its owner's hand.
• That player discards a card.