If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

When Avenger of Zendikar enters the battlefield, create a 0/1 green Plant creature token for each land you control.

Landfall -- Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on each Plant creature you control.

First strike

When Combustible Gearhulk enters the battlefield, target opponent may have you draw three cards. If the player doesn't, you mill three cards, then Combustible Gearhulk deals damage to that player equal to the total mana value of those cards.

Sacrifice Dauntless Escort: Creatures you control gain indestructible until end of turn.

Prevent all combat damage that would be dealt to you this turn. Populate. (Create a token that's a copy of a creature token you control.)

Whenever a nontoken creature enters the battlefield, its controller creates a token that's a copy of that creature.

Whenever a nontoken creature leaves the battlefield, exile all tokens with the same name as that creature.

When Dual Nature leaves the battlefield, exile all tokens created with Dual Nature.

Whenever a creature with power 3 or greater enters the battlefield under your control, draw a card.

{G}, {T}: You may put a creature card from your hand onto the battlefield.

{2}{R}, {T}: Create a token that's a copy of target creature card in your graveyard, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.

Inspired -- Whenever Felhide Spiritbinder becomes untapped, you may pay {1}{R}. If you do, create a token that's a copy of another target creature, except it's an enchantment in addition to its other types. It gains haste. Exile it at the beginning of the next end step.

Whenever Flamerush Rider attacks, create a token that's a copy of another target attacking creature and that's tapped and attacking. Exile the token at end of combat.

Dash {2}{R}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Whenever a nontoken creature enters the battlefield under your control, you may pay {R}. If you do, create a token that's a copy of that creature. That token gains haste. Exile it at the beginning of the next end step.

Flying

When Foe-Razer Regent enters the battlefield, you may have it fight target creature you don't control.

Whenever a creature you control fights, put two +1/+1 counters on it at the beginning of the next end step.

Whenever another creature with power 3 or greater enters the battlefield under your control, you may draw a card.

Trample

Whenever Giant Adephage deals combat damage to a player, create a token that's a copy of Giant Adephage.

Vigilance

{T}: Create an 8/8 Beast creature token that's red, green, and white.

Constellation -- Whenever Goldenhide Ox or another enchantment enters the battlefield under your control, target creature must be blocked this turn if able.

At the beginning of your upkeep, populate. (Create a token that's a copy of a creature token you control.)

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

{T}: Add {G} for each +1/+1 counter on Gyre Sage.

Create a token that's a copy of target creature, except it has haste and "At the beginning of the end step, exile this permanent."

Rally -- Whenever Hero of Goma Fada or another Ally enters the battlefield under your control, creatures you control gain indestructible until end of turn.

Creature tokens you control get +1/+1 and have vigilance.

Whenever a creature with power 4 or greater enters the battlefield, its controller draws a card.

Haste

{T}: Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step.

{1}, {T}: Add {R}{G}{W}.

Imprint -- Whenever a nontoken creature dies, you may exile that card. If you do, return each other card exiled with Mimic Vat to its owner's graveyard.

{3}, {T}: Create a token that's a copy of a card exiled with Mimic Vat. It gains haste. Exile it at the beginning of the next end step.

Whenever a nontoken creature enters the battlefield under your control, you may pay {2}. If you do, create a token that's a copy of that creature, except it has haste and "At the beginning of the end step, sacrifice this permanent."

{T}: Target creature you control gains protection from the color of your choice until end of turn.

When Myr Battlesphere enters the battlefield, create four 1/1 colorless Myr artifact creature tokens.

Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.

For each creature token on the battlefield, its controller creates a token that's a copy of that creature.

Flashback {4}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Creature tokens you control get +1/+1.

When Precursor Golem enters the battlefield, create two 3/3 colorless Golem artifact creature tokens.

Whenever a player casts an instant or sorcery spell that targets only a single Golem, that player copies that spell for each other Golem that spell could target. Each copy targets a different one of those Golems.

Whenever another creature enters the battlefield under your control, that creature gets +3/+3 until end of turn.

Trample

Whenever Primeval Titan enters the battlefield or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle.

Rally -- Whenever Resolute Blademaster or another Ally enters the battlefield under your control, creatures you control gain double strike until end of turn.

{2}{G/W}, {T}: Create a 1/1 green and white Elf Warrior creature token.

{4}{G/W}{G/W}, {T}: For each creature token you control, create a token that's a copy of that creature.

Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.)

Flash

Double strike, vigilance, haste

Other creatures you control have haste.

{W}, {T}: Untap another target creature.

Flash

Double strike, vigilance, haste

Other creatures you control have haste.

{W}, {T}: Untap another target creature.

When Scion of Vitu-Ghazi enters the battlefield, if you cast it from your hand, create a 1/1 white Bird creature token with flying, then populate. (Create a token that's a copy of a creature token you control.)

For each token you control, create a token that's a copy of that permanent.

Flash

When Selfless Squire enters the battlefield, prevent all damage that would be dealt to you this turn.

Whenever damage that would be dealt to you is prevented, put that many +1/+1 counters on Selfless Squire.

Whenever another creature enters the battlefield, its controller may draw a card if its power is greater than each other creature's power.

{G}, {T}: Add X mana in any combination of colors, where X is the greatest power among creatures you control.

{T}: Add two mana in any combination of colors. Spend this mana only to cast creature spells.

Formidable -- {9}{G}{G}, {T}: Each player's life total becomes the number of creatures they control. Activate only if creatures you control have total power 8 or greater.

{T}: Add three mana of any one color. Spend this mana only to cast creature spells.

Imprint -- When Soul Foundry enters the battlefield, you may exile a creature card from your hand.

{X}, {T}: Create a token that's a copy of the exiled card. X is the mana value of that card.

Enchant creature

Enchanted creature has "{T}: Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

Vigilance

Whenever Sun Titan enters the battlefield or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

Destroy target artifact or enchantment, then populate. (Create a token that's a copy of a creature token you control.)

At the beginning of each upkeep, you may exile target creature card from your graveyard. If you do, create a token that's a copy of that card, except it's a Spirit in addition to its other types. Exile it at the beginning of the next end step.

When Terastodon enters the battlefield, you may destroy up to three target noncreature permanents. For each permanent put into a graveyard this way, its controller creates a 3/3 green Elephant creature token.

Landfall -- Whenever a land enters the battlefield under your control, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.

Whenever another creature enters the battlefield under your control, you gain life equal to that creature's toughness.

{1}{G}{W}, {T}: Populate. (Create a token that's a copy of a creature token you control.)

Strive -- This spell costs {2}{R} more to cast for each target beyond the first.

Choose any number of target creatures you control. For each of them, create a token that's a copy of that creature, except it has haste. Exile those tokens at the beginning of the next end step.

{4}{G}{W}: Create a 3/3 green Centaur creature token.

{2}{G}{W}: Populate. (Create a token that's a copy of a creature token you control.)

Whenever an opponent casts a spell during your turn or when Voice of Resurgence dies, create a green and white Elemental creature token with "This creature's power and toughness are each equal to the number of creatures you control."

Populate. (Create a token that's a copy of a creature token you control.)

Wayfaring Temple's power and toughness are each equal to the number of creatures you control.

Whenever Wayfaring Temple deals combat damage to a player, populate. (Create a token that's a copy of a creature token you control.)

When Wort, the Raidmother enters the battlefield, create two 1/1 red and green Goblin Warrior creature tokens.

Each red or green instant or sorcery spell you cast has conspire. (As you cast the spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose new targets for the copy.)

Haste

When Zealous Conscripts enters the battlefield, gain control of target permanent until end of turn. Untap that permanent. It gains haste until end of turn.