Ferropede can't be blocked.
Whenever Ferropede deals combat damage to a player, you may remove a counter from target permanent.

Target player discards two cards. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

You may pay rather than pay the mana cost for spells that you cast.

Discard an artifact card: Fleshgrafter gets +2/+2 until end of turn.

Counter target spell. If that spell is countered this way, its controller may put a creature card from their hand onto the battlefield.

Flying (This creature can't be blocked except by creatures with flying or reach.)
: Furnace Whelp gets +1/+0 until end of turn.

: Put a charge counter on Gemstone Array.
Remove a charge counter from Gemstone Array: Add one mana of any color.

First strike
Goblin Brawler can't be equipped.

: Goblin Cannon deals 1 damage to any target. Sacrifice Goblin Cannon.

Equipped creature gets +3/+2.
Whenever Grafted Wargear becomes unattached from a permanent, sacrifice that permanent.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Destroy each nonland artifact with converted mana cost 4 or less.

, Sacrifice an artifact: Target player mills three cards.
Whenever an artifact enters the battlefield, you may untap Grinding Station.

Guardian Idol enters the battlefield tapped.
: Add .
: Guardian Idol becomes a 2/2 Golem artifact creature until end of turn.

Equipped creature gets +0/+2 and has ": Prevent the next 1 damage that would be dealt to any target this turn."
: Attach Healer's Headdress to target creature you control.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)
, Sacrifice Heliophial: It deals damage equal to the number of charge counters on it to any target.

Equipped creature has first strike, trample, and haste.
: If you control Equipment named Helm of Kaldra, Sword of Kaldra, and Shield of Kaldra, create Kaldra, a legendary 4/4 colorless Avatar creature token. Attach those Equipment to it.
Equip

Equipped creature gets +1/+1 and has trample.
: Attach Horned Helm to target creature you control.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Flying
When Hoverguard Sweepers enters the battlefield, you may return up to two target creatures to their owners' hands.

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)
, Remove X charge counters from Infused Arrows: Target creature gets -X/-X until end of turn.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)
Return target artifact to its owner's hand.