You draw two cards and you lose 2 life. Each opponent gets a poison counter.

As Hardy of Myra's Marvels enters, choose a number.
Whenever you cast a spell with the chosen number of lines of flavor text, put that many +1/+1 counters on target creature.
Partner (You can have two commanders if both have partner.)

When Oath of Chandra enters, it deals 3 damage to target creature an opponent controls.
At the beginning of each end step, if a planeswalker entered the battlefield under your control this turn, Oath of Chandra deals 2 damage to each opponent.

Choose a creature at random. You gain control of that creature until end of turn. Untap it. It gains haste until end of turn. Then destroy all other creatures.

Enchant creature
Enchanted creature gets -3/-3.

This land enters tapped.
: Add .
, , Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

Haste, toxic 3 (Players dealt combat damage by this creature also get three poison counters.)
This creature can't be blocked by creatures with power 2 or less.
Corrupted — When this creature dies, exile it. When you do, return up to X target cards from your graveyard to your hand, where X is the number of opponents who have three or more poison counters.

At the beginning of combat on your turn, if you control another creature with power 4 or greater, put a +1/+1 counter on this creature.

Enchant creature
Enchanted creature has defender.

Flying
: Tap target creature with flying.

Defender (This creature can't attack.)
Flying

Equipped creature gets +3/+3.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Exile target attacking creature and all Equipment attached to it.

Activated abilities cost more to activate unless they're mana abilities.

Whenever a creature enters, if it entered from your graveyard or you cast it from your graveyard, return this card from your graveyard to the battlefield tapped at the beginning of the next end step.

Infusion — Look at the top four cards of your library. You may reveal a creature or land card from among them and put it into your hand. If you gained life this turn, you may instead reveal two creature and/or land cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order.

Flying
Whenever this creature attacks, target creature defending player controls gets -2/-0 and loses flying until your next turn.

, Mill a card: Add . (Activate only as an instant. To mill a card, put the top card of your library into your graveyard.)

Flying
, Discard a card: Put two +1/+1 counters on this creature.

Delirium — This creature has menace as long as there are four or more card types among cards in your graveyard. (A creature with menace can't be blocked except by two or more creatures.)