Whenever this creature attacks, you get {E}{E} (two energy counters). Pay {E}{E}: Exile this creature, then return it to the battlefield under its owner's control.

Flying Whenever this creature or another creature you control enters, you get {E} (an energy counter). Whenever this creature attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.

Whenever you get one or more {E} (energy counters), put a +1/+1 counter on target creature you control. {4}, {T}: You get {E}.

When this creature enters, you get {E}{E}{E} (three energy counters). {T}, Pay {E}: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter). {T}, Pay six {E}: Look at the top six cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

{T}: Draw three cards. {2}{U}{U}: Return Arcanis to its owner's hand.

Whenever an artifact or Artificer you control enters, you may pay {1}. If you do, you get {E}{E} (two energy counters). Pay six {E}, Sacrifice this enchantment: Draw three cards.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is this creature's power.

Draw two cards, then discard two cards. Untap up to three lands.

Whenever this creature becomes untapped, you may pay {2}. If you do, draw a card. Whenever an opponent casts a spell from anywhere other than their hand, draw a card. Discard a card: This creature can't be blocked this turn.

Scry 2, then draw two cards. You get {E}{E} (two energy counters).

{0}: Until end of turn, this creature gets -1/-1 and gains your choice of double strike, protection from red, vigilance, or shadow. (A creature with shadow can block or be blocked by only creatures with shadow.)

When this creature enters, you get {E}{E}{E} (three energy counters). Pay {E}{E}{E}: This creature gets +X/+X until end of turn, where X is its power.

When this creature enters, you get {E}{E} (two energy counters). {T}, Pay {E}: Target player mills three cards.

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying, first strike Whenever a commander you control enters or attacks, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying At the beginning of your upkeep, you get {E}{E}{E} (three energy counters). Pay eight {E}: Return all other creatures to their owners' hands. Activate only as a sorcery.

{T}: You get {E} (an energy counter). {T}, Pay {E}{E}{E}: This artifact deals 2 damage to target player or planeswalker.

Counter target spell.

This creature doesn't untap during your untap step. {2}, {Q}: Put a +1/+1 counter on this creature. ({Q} is the untap symbol.)

{U}: Untap this creature.

{U}: Untap this creature. {U}: This creature gains flying until end of turn. {U}: This creature gains shroud until end of turn. (It can't be the target of spells or abilities.) {1}: This creature gets +1/-1 until end of turn. {1}: This creature gets -1/+1 until end of turn.

Flying {2}, {Q}: Add one mana of any color. ({Q} is the untap symbol.)