Super mardi

Players skip their upkeep steps.

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.) {1}, Remove four +1/+1 counters from Etc...

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

You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells that you cast.

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

{2}: 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 {0} ({0}: Attach to tar...

{T}, 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. {T}: Add {C}. {2}: Guardian Idol becomes a 2/2 Golem artifact creature until end of turn.

Equipped creature gets +0/+2 and has "{T}: Prevent the next 1 damage that would be dealt to any target this turn." {W}{W}: Attach Healer's Headdre...

Destroy all creatures that dealt damage to you this turn.

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Heliophial: It deals dam...

Equipped creature has first strike, trample, and haste. {1}: If you control Equipment named Helm of Kaldra, Sword of Kaldra, and Shield of Kaldra, ...

Equipped creature gets +1/+1 and has trample. {G}{G}: Attach Horned Helm to target creature you control. Equip {1} ({1}: Attach to target creature ...

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {T}, Remove X charge counters from Infu...

Sacrifice an artifact: Add {C}{C}.

Players play with the top card of their libraries revealed. {T}, Sacrifice Lantern of Insight: Target player shuffles.

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.) Remove a +1/+1 counter from Lunar Avenge...

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Artifact creature spells you cast have affinity for artif...

{3}: Switch Myr Quadropod's power and toughness until end of turn.

At the beginning of your upkeep, if Myr Servitor is on the battlefield, each player returns all cards named Myr Servitor from their graveyard to th...

Each player returns all artifact cards from their graveyard to the battlefield.

Equipped creature has shroud. (It can't be the target of spells or abilities.) {U}{U}: Attach Neurok Stealthsuit to target creature you control. ...

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) Equipped creature gets +X/+X, where X i...