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

As Arcane Adaptation enters the battlefield, choose a creature type.
Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

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

Flying
At the beginning of each end step, if an opponent lost 3 or more life this turn,
Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

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.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Court Cleric gets +1/+1 as long as you control an Ajani planeswalker.

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.)

Target creature gets +3/+3 and gains trample until end of turn.

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.)

Surveil 2, then draw a card. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

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

Choose an artifact card name. Search target opponent's graveyard, hand, and library for any number of cards with the chosen name and exile them. Then that player shuffles their library.

Destroy target creature, then assemble a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

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.

Whenever Goblin Locksmith attacks, creatures with defender can't block this turn.

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

Other creatures have "Whenever this creature attacks, you may have it fight Grothama, All-Devouring."
When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.