Zirda, the Dawnwaker (Halo Foil) [Multiverse Legends]

Zirda, the Dawnwaker (Halo Foil) [Multiverse Legends]Set: Multiverse Legends Type: Legendary Creature Elemental Fox Rarity: Rare Cost: {1}{R W}{R W} Companion Each permanent card in your starting deck has an activated ability. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} any time you could cast a sorcery.) Abilities you activate that aren't mana abilities cost {2} less to activate. This effect can't reduce the mana in that cost to less than one

Who else would I turn to but you

Set: Scourge Type: Enchantment Rarity: Rare Cost: {3}{U}{U} When Parallel Thoughts enters the battlefield

Loyal in battle

Hit Points 676

he gains flying until end of turn

The Overmind also requires that

Set: Guilds of Ravnica Type: Instant Rarity: Rare Cost: {1}{U}{R} Counter target spell

Set: Modern Horizons 2 Type: Artifact Rarity: Uncommon Cost: {G}{U} Creature tokens you control have flying

Set: Dominaria United Prerelease Promos Type: Creature — Angel Rarity: Rare Cost: {2}{W}{W} Kicker {B} and/or {R} (You may pay an additional {B} and/or {R} as you cast this spell

Whenever Qasali Slingers or another Cat enters the battlefield under your control

Mephidross gives up treasure easily

so did the demand for fail-safe barriers