mtg.wtf

Flying
When this creature enters, you gain 2 life for each Gate you control.

Archway Commons enters tapped.
When Archway Commons enters, sacrifice it unless you pay {1}.
{T}: Add one mana of any color.

Squad {2}
Arco-Flagellant can't block.
Endurant — Pay 3 life: Arco-Flagellant gains indestructible until end of turn.

Arctic Foxes can't be blocked by creatures with power 2 or greater as long as defending player controls a snow land.

Trample
Cumulative upkeep {G} or {W}
When Arctic Nishoba dies, you gain 2 life for each age counter on it.

Cumulative upkeep {2}
When Arctic Wolves enters, draw a card.

When Arcum's Astrolabe enters, draw a card.
{1}, {T}: Add one mana of any color.

{2}, {T}: Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land.

{2}, {T}: Target snow land is no longer snow.
{2}, {T}: Target nonsnow basic land becomes snow.

{3}, {T}: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That player may pay {X}, where X is that mana value. If they don't pay, the creature attacks this turn if able, and at the beginning of the next end step, destroy it if it didn't attack this turn. Activate only before attackers are declared.

Reach, lifelink
Outlast {G/W}
Each other creature you control without a +1/+1 counter on it has outlast {G/W}.

Flying
At the beginning of your upkeep, if Arden Angel is in your graveyard, roll a four-sided die. If the result is 1, return Arden Angel from your graveyard to the battlefield.

Whenever Ardent Dustspeaker attacks, you may put an instant or sorcery card from your graveyard on the bottom of your library. If you do, exile the top two cards of your library. You may play those cards this turn.

When Ardent Elementalist enters, return target instant or sorcery card from your graveyard to your hand.

Vigilance

Exalted
Cascade

Metalcraft — Ardent Recruit gets +2/+2 as long as you control three or more artifacts.

Flying

Haste
Whenever Ardoz, Cobbler of War or another creature you control enters, that creature gets +2/+0 until end of turn.
{3}{R}: Create a 1/1 red Goblin creature token with haste. Activate only as a sorcery.

Starting intensity 0
Whenever another creature enters under your control, cards you own named Arek, False Goldwarden intensify by 1.
{3}{W}{B}, {T}, Sacrifice Arek, False Goldwarden: Target opponent loses X life and you gain X life, where X is Arek's intensity.

{3}, {T}: Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other.

Heroic — Whenever you cast a spell that targets Arena Athlete, target creature an opponent controls can't block this turn.

Legendary creatures don't untap during their controllers' untap steps.
When Arena of the Ancients enters, tap all legendary creatures.

{W}, Sacrifice an enchantment: Destroy target enchantment.
{3}{U}{U}: Counter target enchantment spell.

When you planeswalk to Aretopolis and at the beginning of your upkeep, put a scroll counter on Aretopolis, then you gain life equal to the number of scroll counters on it.
When Aretopolis has ten or more scroll counters on it, planeswalk.
Whenever chaos ensues, put a scroll counter on Aretopolis, then draw cards equal to the number of scroll counters on it.