{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

{T}: Add {R}. {4}{R}: Foriysian Totem becomes a 4/4 red Giant artifact creature with trample until end of turn. As long as Foriysian Totem is a creature, it can block an additional creature each combat.

{T}: Add three mana of any one color.

Blind-Spot Giant can't attack or block unless you control another Giant.

Trample Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Trample Borderland Behemoth gets +4/+4 for each other Giant you control.

If a source would deal 3 or less damage to Callous Giant, prevent that damage.

Defender {T}: Creatures you control gain haste until end of turn.

At the beginning of combat on your turn, choose a kind of counter at random that Crystalline Giant doesn't have on it from among flying, first strike, deathtouch, hexproof, lifelink, menace, reach, trample, vigilance, and +1/+1. Put a counter of that kind on Crystalline Giant.

If Cunning Giant is unblocked, you may have it assign its combat damage to a creature defending player controls.

When Cyclopean Giant dies, target land becomes a Swamp. Exile Cyclopean Giant.

Constellation — Whenever Doomwake Giant or another enchantment enters the battlefield under your control, creatures your opponents control get -1/-1 until end of turn.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Trample, haste

When Fleshpulper Giant enters the battlefield, you may destroy target creature with toughness 2 or less.

{R}: Flowstone Giant gets +2/-2 until end of turn.

Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

When Furystoke Giant enters the battlefield, other creatures you control gain "{T}: This creature deals 2 damage to any target" until end of turn. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

When Giant Harbinger enters the battlefield, you may search your library for a Giant card, reveal it, then shuffle and put that card on top.

Whenever another creature enters the battlefield, you may put X +1/+1 counters on Hamletback Goliath, where X is that creature's power.

{T}: Hammerfist Giant deals 4 damage to each creature without flying and each player.

When Hearthcage Giant enters the battlefield, create two 3/1 red Elemental Shaman creature tokens. Sacrifice an Elemental: Target Giant creature gets +3/+1 until end of turn.

When Hired Giant enters the battlefield, each other player may search their library for a land card and put that card onto the battlefield. Then each player who searched their library this way shuffles.

Haste Hotheaded Giant enters the battlefield with two -1/-1 counters on it unless you've cast another red spell this turn.

Tap an untapped snow land you control: Karplusan Giant gets +1/+1 until end of turn.

Whenever Loafing Giant attacks or blocks, mill a card. If a land card was milled this way, prevent all combat damage Loafing Giant would deal this turn.

Undergrowth — When Lotleth Giant enters the battlefield, it deals 1 damage to target opponent for each creature card in your graveyard.

When Magma Giant enters the battlefield, it deals 2 damage to each creature and each player.

Nightfire Giant gets +1/+1 as long as you control a Mountain. {4}{R}: Nightfire Giant deals 2 damage to any target.

Tribute 2 (As this creature enters the battlefield, an opponent of your choice may put two +1/+1 counters on it.) When Pharagax Giant enters the battlefield, if tribute wasn't paid, Pharagax Giant deals 5 damage to each opponent.

At the beginning of your upkeep, Ravenous Giant deals 1 damage to you.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) {3}{R}: Target creature can't block this turn.

Reach

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever Slinking Giant blocks or becomes blocked, it gets -3/-0 until end of turn.

Giant spells you cast cost {2} less to cast.

{T}: Target creature you control with toughness less than Stone Giant's power gains flying until end of turn. Destroy that creature at the beginning of the next end step.

{6}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) When Stoneshock Giant becomes monstrous, creatures without flying your opponents control can't block this turn.

Whenever Tectonic Giant attacks or becomes the target of a spell an opponent controls, choose one — • Tectonic Giant deals 3 damage to each opponent. • Exile the top two cards of your library. Choose one of them. Until the end of your next turn, you may play that card.

Haste (This creature can attack and {T} as soon as it comes under your control.)

When Tithebearer Giant enters the battlefield, you draw a card and you lose 1 life.

Whenever Two-Headed Giant attacks, flip two coins. If both coins come up heads, Two-Headed Giant gains double strike until end of turn. If both coins come up tails, Two-Headed Giant gains menace until end of turn.

Trample Two-Headed Giant of Foriys can block an additional creature each combat.

Haste Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token that's a copy of this creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Enchant Mountain Enchanted Mountain is a 7/7 red Giant creature with haste. It's still a land.

Nonbasic lands are Mountains.

Enchant creature Enchanted creature gets +2/+1 and has menace.

Enchant creature Enchanted creature gets +2/+2.

Choose a Giant creature you control. It deals damage equal to its power to target creature.

As an additional cost to cast this spell, sacrifice a creature. Fling deals damage equal to the sacrificed creature's power to any target.

Rakdos Carnarium enters the battlefield tapped. When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand. {T}: Add {B}{R}.

({T}: Add {R}.)

({T}: Add {B}.)