When this creature enters,
destroyThe only ways a permanent can be destroyed are as a result of an effect that uses the word “destroy” or as a result of the state-based actions that check for lethal damage (see rule 704.5g) or damage from a source with deathtouch (see rule 704.5h). If a permanent is put into its owner’s graveyard for any other reason, it hasn’t been “destroyed.”
A regeneration effect replaces a destruction event. See rule 701.19, “Regenerate.” (CR 701.8) target creature you don't control that was dealt damage this turn.
DisturbDisturb is an ability found on the front face of some double-faced cards (see rule 712, “Double-Faced Cards”). “Disturb [cost]” means “You may cast this card transformed from your graveyard by paying [cost] rather than its mana cost.” See rule 712.8c.
A resolving double-faced spell that was cast using its disturb ability enters the battlefield with its back face up. (CR 702.146) (You may
castTo cast a spell is to take it from the zone it’s in (usually the hand), put it on the stack, and pay its costs, so that it will eventually resolve and have its effect. A player may cast a spell if they have priority. See rule 601, “Casting Spells.”
To cast a card is to cast it as a spell. (CR 701.5) this card from your graveyard transformed for its
disturbDisturb is an ability found on the front face of some double-faced cards (see rule 712, “Double-Faced Cards”). “Disturb [cost]” means “You may cast this card transformed from your graveyard by paying [cost] rather than its mana cost.” See rule 712.8c.
A resolving double-faced spell that was cast using its disturb ability enters the battlefield with its back face up. (CR 702.146) cost.) //
FlyingFlying is an evasion ability.
A creature with flying can’t be blocked except by creatures with flying and/or reach. A creature with flying can block a creature with or without flying. (See rule 509, “Declare Blockers Step,” and rule 702.17, “Reach.”)
Multiple instances of flying on the same creature are redundant. (CR 702.9),
deathtouchDeathtouch is a static ability.
A creature with toughness greater than 0 that’s been dealt damage by a source with deathtouch since the last time state-based actions were checked is destroyed as a state-based action. See rule 704.
Any nonzero amount of combat damage assigned to a creature by a source with deathtouch is considered to be lethal damage for the purposes of determining if excess damage is being dealt.
The deathtouch rules function no matter what zone an object with deathtouch deals damage from.
If an object is no longer in the zone it’s expected to be in as an effect causes it to deal damage, its last known information is used to determine whether it had deathtouch.
Multiple instances of deathtouch on the same object are redundant. (CR 702.2)
If Covetous Geist would be put into a graveyard from anywhere,
exileTo exile an object, move it to the exile zone from wherever it is. See rule 406, “Exile.” (CR 701.13) it instead.