Tek

Tek gets +0/+2 as long as you control a Plains, has flying as long as you control an Island, gets +2/+0 as long as you control a Swamp, has first strike as long as you control a Mountain, and has trample as long as you control a Forest.

Shivan Meteor

Shivan Meteor deals 13 damage to target creature.
Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Skithiryx, the Blight Dragon

Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
: Skithiryx, the Blight Dragon gains haste until end of turn.
: Regenerate Skithiryx.

Spellskite

: Change a target of target spell or ability to Spellskite. ( can be paid with either or 2 life.)

Mishra’s Bauble

, Sacrifice Mishra’s Bauble: Look at the top card of target player’s library. Draw a card at the beginning of the next turn’s upkeep.

Master Splicer

When Master Splicer enters, create a 3/3 colorless Phyrexian Golem artifact creature token.
Golems you control get +1/+1.

Master Transmuter

, , Return an artifact you control to its owner’s hand: You may put an artifact card from your hand onto the battlefield.

Greater Mossdog

Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)

Sarkhan the Mad

0: Reveal the top card of your library and put it into your hand. Sarkhan the Mad deals damage to himself equal to that card’s mana value.
−2: Target creature’s controller sacrifices it, then that player creates a 5/5 red Dragon creature token with flying.
−4: Each Dragon creature you control deals damage equal to its power to target player or planeswalker.

Master Transmuter

, , Return an artifact you control to its owner’s hand: You may put an artifact card from your hand onto the battlefield.

Bloom Tender

: For each color among permanents you control, add one mana of that color.

Mishra’s Bauble

, Sacrifice Mishra’s Bauble: Look at the top card of target player’s library. Draw a card at the beginning of the next turn’s upkeep.

Precursor Golem

When Precursor Golem enters, 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.

Thelonite Hermit

All Saprolings get +1/+1.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When Thelonite Hermit is turned face up, create four 1/1 green Saproling creature tokens.

Master Splicer

When Master Splicer enters, create a 3/3 colorless Phyrexian Golem artifact creature token.
Golems you control get +1/+1.

Rubblebelt Raiders

Whenever Rubblebelt Raiders attacks, put a +1/+1 counter on it for each attacking creature you control.

Mirrored Depths

Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell.
Whenever chaos ensues, target player reveals the top card of their library. If it’s a nonland card, you may cast it without paying its mana cost.

Talon Gates

Any time you could cast a sorcery, you may exile a nonland card from your hand with X time counters on it, where X is its mana value. If the exiled card doesn’t have suspend, it gains suspend. (At the beginning of its owner’s upkeep, they remove a time counter. When the last is removed, the player may cast it without paying its mana cost. If it’s a creature, it has haste.)
Whenever chaos ensues, remove two time counters from each suspended card you own.

Assembly-Worker

: Target Assembly-Worker creature gets +1/+1 until end of turn.

Summoner’s Pact

Search your library for a green creature card, reveal it, put it into your hand, then shuffle.
At the beginning of your next upkeep, pay . If you don’t, you lose the game.

Lotus Cobra

Landfall — Whenever a land you control enters, add one mana of any color.