When this creature enters, creatures your opponents control get -2/-2 until end of turn.
Whenever a creature an opponent controls dies, that player loses 2 life.

, : Copy target activated or triggered ability you control X times. You may choose new targets for the copies. This ability can't be copied and X can't be 0. (Mana abilities can't be targeted.)

All lands become 2/2 creatures until end of turn. They're still lands.

Players can't cast spells that share a color with the spell most recently cast this turn.

, : Draw a card. Activate only if you control three or more lands with the same name.

: Destroy target Aura attached to a creature.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Mill five cards.
II — Return all land cards from your graveyard to the battlefield tapped.
III — Until end of turn, another target creature you control gains trample and gets +X/+X, where X is the number of lands you control.
Reach, trample

Whenever an opponent draws a card, this enchantment deals 1 damage to that player.

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)
, Remove two +1/+1 counters from among creatures you control: Destroy target artifact or enchantment.

When this creature dies, create a 4/4 red Bird creature token with flying at the beginning of the next end step.

Constellation — Whenever this creature or another enchantment you control enters, double target creature's power and toughness until end of turn.

Lightning Bolt deals 3 damage to any target.

If a triggered ability of a colorless spell you control or another colorless permanent you control triggers, that ability triggers an additional time.
Whenever you cast a colorless spell, copy it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

Target opponent chooses a creature they control. Other creatures they control can't block this turn.

Reach
Legolas can't be blocked by creatures with power 2 or less.
Whenever another legendary creature you control enters, put a +1/+1 counter on Legolas.
Whenever Legolas deals combat damage to a player, draw a card.

Whenever you draw a card, exile the top card of your library face down.
At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with this artifact into your hand.

Changeling (This card is every creature type.)
This creature can't block and can't be blocked.

The first legendary creature spell you cast each turn costs less to cast.
At the beginning of combat on your turn, if you control two or more other legendary creatures, you may transform Serah Farron.

Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
Trample
Heavy Power Hammer — Whenever this creature deals combat damage to a player, destroy target artifact or enchantment that player controls.

Other Goblins you control get +1/+1.
, : This creature deals damage equal to the number of Goblins that entered the battlefield under your control this turn to any target.