Target opponent discards their hand, then draws seven cards. You discard your hand, then exile the top seven cards of that player's library. You may play those cards as long as they remain exiled, and mana of any type can be spent to cast them.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. If you control another permanent you don't own, it gets +2/+0 until end of turn.

When Retrofit Paladin enters, tap up to two target creatures with power 3 or less.

When Revved Robo enters, you may put a +1/+1 counter on it. If you don't, it gets +2/+0 and gains haste until end of turn.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. Scry 1.

Tap target creature. It can't become untapped for as long as you control a creature named Tidewake Walker.

Whenever Rooftop Slink deals combat damage to a player, you may have each player discard a card.
Cybersoul {3}{B}

Vigilance
When Royal Templar enters, target creature gets +2/+0 and gains vigilance and indestructible until end of turn.
Cybersoul {3}{W}

Trample
Ruin, the First Shard enters with a +1/+1 counter on it for each mana spent to cast it.

Reach
{1}, Sacrifice a land: Put a +1/+1 counter on Runerock Automaton.

Runway Mech enters with a +1/+1 counter on it.

Hexproof from permanents

Whenever you cast an instant or sorcery spell, choose one that hasn't been chosen this turn —
• Create a 1/1 colorless Construct artifact creature token.
• Discard a card, then draw a card.
• Add one mana of any type.

Haste
Solidarity

Enchant creature
Enchanted creature gets -1/-1.
Sacrifice an artifact: Destroy enchanted creature.

Scuttle Tank enters with a defender counter on it.

Secluded Hangar enters tapped unless you control a basic non-Forest land.
{T}: Add {G}.
{2}, {T}: Put a +1/+1 counter on target creature that entered this turn.

Exile all creatures you don't control. Then return those cards to the battlefield tapped under their owners' control unless you've cast another spell named Second Crown's Fall this game. Then exile Second Crown's Fall.

Flying
Whenever Seeker Orbs becomes tapped, scry 1.

Until end of turn, target creature you control gets +1/+1 for each different creature type among non-Coward creatures you control. All creatures able to block it this turn do so.

Solidarity
You may look at the top card of your library any time.
You may cast creature spells that have a creature type no creature you control does from the top of your library.

Vigilance
Whenever you cast a spell from anywhere other than your hand, put a +1/+1 counter on Shepherd of Steel.
When Shepherd of Steel dies, put its counters on target creature you control.

Draw cards equal to the greatest power among creatures you control. At the beginning of the next end step, discard that many cards.

Target creature gets +2/+0 until end of turn and can't be blocked this turn.

Exile target nonland permanent with mana value less than or equal to the amount of life you've lost this turn.