When Magnetic Snuffler enters, return target Equipment card from your graveyard to the battlefield attached to Magnetic Snuffler.
Whenever you sacrifice an artifact, put a +1/+1 counter on Magnetic Snuffler.

{1}: Untap Magnetling.
{1}: Magnetling can't be blocked by creatures with power 2 or less this turn.
{1}: Choose a card type. Magnetling loses that type until end of turn.
{1}: Magnetling gets +1/-1 or -1/+1 until end of turn.

Menace
{4}{B}{B}: Transform Maw Impostor.

Reach
Surface {4}{G}{G}

When Meteorite enters, it deals 2 damage to any target.
{T}: Add one mana of any color.

{R}, {T}: Copy target activated ability you control. You may choose new targets for the copy.

{T}: Add {C}.
{T}: Surveil 1. Return Mirage Island to its owner's hand.

Landfall — Whenever a land you control enters, you gain 2 life. Then if you control a Mountain and a Plains, each opponent loses 2 life.

Target creature gets -3/-3 until end of turn.
Surface {5}{B}

When Mystery Egg enters, search your library for a card and exile it face down, then shuffle your library. You may look at that card as long as it remains exiled.
{G}, {T}, Sacrifice Mystery Egg: Turn the exiled card face up. You may cast that card this turn if it's a creature spell, and you may cast that spell as though it had flash.

Flying
Amity — Whenever you attack with Nimbus Dragon and exactly one other creature, tap target creature defending player controls.

When Nocturne, Monstrous Krasis enters and at the beginning of your upkeep, put X +1/+1 counters on Nocturne, where X is the number of different kinds of counters on permanents you control.

Trample
Amity — Whenever Old-Growth Gecko attacks, put a +1/+1 counter on another creature you control. If exactly one other creature attacked with it, this ability triggers three times instead.

Flying, first strike, lifelink
Landfall — Whenever a land you control enters, other creatures you control get +2/+2 until end of turn.

First strike
Landfall — Whenever a land you control enters, other creatures you control get +1/+1 until end of turn.
{2}{R}{W}{B}: Transform Omenhorn.

Ominous Quag enters tapped.
{T}: Add {W} or {B}.
{2}{W}{B}, {T}, Sacrifice Ominous Quag: Draw a card.

Target creature you control gains hexproof until end of turn. When a nonmana ability of that creature is next activated or triggered this turn, copy it. You may choose new targets for the copy.

Outlands Prowler has first strike as long as it's your turn.
Landfall — Whenever a land you control enters, Outlands Prowler gets +2/+2 until end of turn.

When Padpole enters, create a Berry token.
Surface {3}{G}

When Parental Pair enters, create a token that's a copy of it, except it's 2/2 and doesn't have this ability.
Amity — Whenever you attack with Parental Pair and exactly one other creature, you may have Parental Pair fight target creature.

You draw two cards, lose 2 life, and mill two cards.

When Pathetic Cocoon enters or dies, create a Berry token.

Each player who controls an artifact or enchantment creates a 2/2 white Mouse creature token. Then destroy all artifacts and enchantments.

Return up to one target artifact, enchantment, or land card from your graveyard to your hand.
Create two Berry tokens.

Landfall — Whenever a land you control enters, Pitfall Pincher deals 1 damage to any target. If that target is a creature, it blocks this turn if able.