msem-instigator

First strike, menace
When Zhargetan Reclaimer enters the battlefield, put any number of cards your opponents own from exile into their owners' graveyards. If three or more cards were put into graveyards this way, create two 1/1 Scout creature tokens that are all colors.

Wanderlust — When Ardent Explorers enters the battlefield, if you control four or more differently named lands, create a 1/1 Scout creature token that's all colors. That token gains haste until end of turn.

Crater Burst deals 3 damage to any target. Add {W}{U}{B}{R}{G}. Until end of turn, you don't lose this mana as steps and phases end.

Gain control of target creature until end of turn. Untap that creature. Until end of turn, it gains haste and “Whenever this creature deals combat damage to a player, aetherize it.” (To aetherize, create a token that's a copy of it, then exile that token.)

Target creature you control gets +2/+0 until end of turn. If that creature is attacking, you may aetherize it. (To aetherize, create a token that's a copy of it, then exile that token.)

Whenever an opponent casts a spell during your turn, Hunter of Incantations deals 2 damage to that player.

When Incense Stoker enters the battlefield, you may return target instant or sorcery card with mana value less than or equal to the number of differently named lands you control from your graveyard to your hand.

Whenever a creature enters the battlefield, it deals damage equal to its power to any target of its controller's choice.
When Interplanar Raid enters the battlefield, you may aetherize target creature you control. (To aetherize, create a token that's a copy of it, then exile that token.)

When Journey to the Otherworlds enters the battlefield, draw a card, then choose a creature card name.
Whenever a creature you control with the chosen name attacks, you may aetherize it. (To aetherize, create a token that's a copy of it, then exile that token.)

Whenever a nonbasic nontoken land enters the battlefield under an opponent's control, create a tapped colorless land token named Fading Rift with “{T}, Sacrifice this land: Add one mana of any color.”

When Pyroclastic Maw enters the battlefield, destroy target land. If that land was nonbasic, Pyroclastic Maw gains haste until end of turn.

Wanderlust — When Riftbreaker Mage dies, if you control four or more differently named lands, Riftbreaker Mage deals damage equal to its power to each opponent.

Flying, menace
When Riftkeeper Entity enters the battlefield, discard your hand, then draw cards equal to the number of differently named lands you control.
{1}{R}, Discard Riftkeeper Entity: Create a tapped colorless land token named Fading Rift with “{T}, Sacrifice this land: Add one mana of any color.”

When Rubble Seer enters the battlefield, you may sacrifice a land or exile a land card from your graveyard. If you do, exile the top card of your library. Until the end of your next turn, you may play that card.

Discard a land card: Draw a card. Shardstorm Elemental gets +1/+0 and gains flying until end of turn. Activate only once each turn.

Haste, prowess
Wanderlust — When Spitfireling enters the battlefield, if you control four or more differently named lands, create two 1/1 red Elemental creature tokens with prowess and haste.

Flying, haste
Thermal Surger can't block.
When Thermal Surger enters the battlefield, you may sacrifice a land or exile a land card from your graveyard. If you do, put a +1/+1 counter on Thermal Surger.

When Ageless Weaver enters the battlefield, create a green Aura enchantment token named Years of Experience attached to target creature. The token has enchant creature and “Enchanted creature gets +2/+2.”
Whenever an enchanted creature you control dies, create a 3/3 green Elemental creature token.

This spell costs {1} less to cast for each differently named land you control.
Reach, trample

Hexproof
Crossworld Wanderer gets +1/+1 for each differently named land you control.

Return target card from your graveyard to your hand. Distribute X +1/+1 counters among any number of creatures you control, where X is that card's mana value. Exile Entropic Harvest.

When Far-Realm Guardian enters the battlefield, create a green Aura enchantment token named Wild Bounty attached to target creature. The token has enchant creature and “Enchanted creature gets +1/+1 and has ward {2}.”

Wanderlust — Feral Ornithax gets +2/+2 and has trample as long as you control four or more differently named lands.

Destroy all artifacts and enchantments with mana value 1 or less.
Draw a card.

Choose one —
• Target creature you control gets +1/+1 until end of turn if it's enchanted. Then it fights target creature you don't control.
• Destroy target enchantment.