When this creature dies, you may search your library for up to three Forest cards, put them onto the battlefield tapped, then shuffle.

, , Sacrifice Mindslaver: You control target player during that player's next turn. (You see all cards that player could see and make all decisions for them.)

Flash
When this creature enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

Decimate — When Legate Lanius enters, each opponent sacrifices a tenth of the creatures they control of their choice, rounded up.
Whenever an opponent sacrifices a creature, put a +1/+1 counter on Legate Lanius.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
Each opponent sacrifices a creature of their choice. If you have the city's blessing, instead each opponent sacrifices half the creatures they control of their choice, rounded up.

This land enters tapped unless you have two or more opponents.
: Add or .

Create X 4/4 white Angel creature tokens with flying.
Cycling (, Discard this card: Draw a card.)
When you cycle this card, you may pay . If you do, create X 1/1 white Soldier creature tokens.

: Add one mana of any type that a land you control could produce.

When Mjölnir enters, it deals 4 damage to up to one target creature.
Double all damage equipped creature would deal.
Equip worthy (A creature is worthy if it's a legendary non-Villain that's red and/or white.)
, Discard this card: It deals 2 damage to each creature.

(: Add .)

Other Goblins you control get +1/+1.
Sacrifice a Goblin: Destroy target artifact.

(: Add , , or .)
This land enters tapped.
Cycling (, Discard this card: Draw a card.)

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

: Add .
: Add . Activate only if you control an Island or a Mountain.

Create a token that's a copy of target creature you control, except it isn't legendary.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Flying
Project Image — When this creature enters, create two tokens that are copies of target noncreature permanent, except they're 3/3 Dragon creatures in addition to their other types, and they have flying.

+1: You gain life equal to the number of creatures you control plus the number of planeswalkers you control.
−2: Create a 2/2 white Cat Soldier creature token named Ajani's Pridemate with "Whenever you gain life, put a +1/+1 counter on this token."
0: If you have at least 15 life more than your starting life total, exile Ajani and each artifact and creature your opponents control.

You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.

First strike, protection from red and from white
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
If a source you control would deal damage to a permanent or player, it deals triple that damage instead.