When Alpine Houndmaster enters the battlefield, you may search your library for a card named Alpine Watchdog and/or a card named Igneous Cur, reveal them, put them into your hand, then shuffle.

Whenever Alpine Houndmaster attacks, it gets +X/+0 until end of turn, where X is the number of other attacking creatures.

Target attacking creature gets +2/+2 until end of turn. Each attacking non-Human creature gains trample until end of turn.

Flash (You may cast this spell any time you could cast an instant.)

Enchant creature

When Capture Sphere enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

Whenever an opponent casts a noncreature spell, Cindervines deals 1 damage to that player.

, Sacrifice Cindervines: Destroy target artifact or enchantment. Cindervines deals 2 damage to that permanent's controller.

Exile target creature, then roll a d20.

1–9 | Its controller creates a 4/4 green Ox creature token.

10–19 | Its controller creates a 2/2 green Boar creature token.

20 | Its controller creates a 0/1 white Goat creature token.

When this creature enters the battlefield, this creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Defender

: Creatures you control gain haste until end of turn.

Whenever you cast a historic spell, target player mills two cards. (Artifacts, legendaries, and Sagas are historic.)

Each opponent returns a nonland permanent they control with the highest mana value among permanents they control to its owner's hand, then discards a card.

Whenever you cast a spell with mana value 4 or greater, create a 1/1 colorless Thopter artifact creature token with flying.

Reach

Whenever two or more creatures your opponents control attack, Flummoxed Cyclops can't block this combat.

Cycling (, Discard this card: Draw a card.)

When you cycle Gempalm Incinerator, you may have it deal X damage to target creature, where X is the number of Goblins on the battlefield.

, Exile a creature card from your graveyard: Create a tapped 2/2 black Zombie creature token.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, you create two Treasure tokens." (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

Flying

Whenever you attack with two or more creatures,

Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

For each player, choose friend or foe. Each friend discards all cards from their hand, then draws that many cards plus one. Khorvath's Fury deals damage to each foe equal to the number of cards in their hand.

Whenever Krenko, Tin Street Kingpin attacks, put a +1/+1 counter on it, then create a number of 1/1 red Goblin creature tokens equal to Krenko's power.

Flash

Enchant creature

Enchanted creature can't attack or block, and its activated abilities can't be activated.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Magmatic Sinkhole deals 5 damage to target creature or planeswalker.

When Myr Custodian enters the battlefield, scry 2. Then each opponent may scry 1. (To scry X, that player looks at the top X cards of their library, then put any number of them on the bottom and the rest on top in any order.)

Enrage — Whenever Polyraptor is dealt damage, create a token that's a copy of Polyraptor.

You may play lands from your graveyard.

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.)

Whenever an opponent draws a card, that player may pay . If the player doesn't, you create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Enchant creature

Enchanted creature has menace and "Whenever this creature deals combat damage to a player, create a Treasure token." (It can't be blocked except by two or more creatures. The token is an artifact with ", Sacrifice this artifact: Add one mana of any color.")

When enchanted creature dies, draw a card.

, Sacrifice Teacher's Pet: Search your library for a card with augment, combine it with target host you control, then shuffle.