This spell costs {X} less to cast, where X is the total toughness of creatures you control.

Defender

{2}{U}{U}: Until end of turn, target creature you control gets +1/+0, gains “Whenever this creature deals combat damage to a player, draw cards equal to its toughness,” and can attack as though it didn’t have defender.

The Tarrasque has haste and ward {10} as long as it was cast.

Whenever The Tarrasque attacks, it fights target creature defending player controls.

This spell costs {3} less to cast for each other spell cast this turn.

Trample, haste

Trample over planeswalkers (This creature can deal excess combat damage to the controller of the planeswalker it’s attacking.)

Thrasta, Tempest’s Roar has hexproof as long as it entered the battlefield this turn.

Vigilance

Ward—Sacrifice a permanent with mana value 1 or greater.

{T}: Create a 10/10 colorless Eldrazi creature token.

When you cast this spell, exile two target permanents.

Indestructible

Whenever Ulamog, the Ceaseless Hunger attacks, defending player exiles the top twenty cards of their library.

When you cast this spell, target opponent exiles half their library, rounded up.

Ward—Sacrifice two permanents.

Ulamog, the Defiler enters the battlefield with a number of +1/+1 counters on it equal to the greatest mana value among cards in exile.

Ulamog has annihilator X, where X is the number of +1/+1 counters on it.

When you cast this spell, destroy target permanent.

Indestructible

Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.)

When Ulamog, the Infinite Gyre is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

This spell costs {X} less to cast, where X is the total power of creatures you control.

Volcanic Salvo deals 6 damage to each of up to two target creatures and/or planeswalkers.

Prototype {2}{G}{G} — 3/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

When Woodcaller Automaton enters the battlefield, if you cast it, untap target land you control. It becomes a Treefolk creature with haste and base power and toughness equal to Woodcaller Automaton’s power and toughness. It’s still a land.