Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.)
I — Create a 0/2 colorless Thopter artifact creature token with flying named Ornithopter.
II — Tap any number of untapped artifacts you control. When you do, this Saga deals that much damage to target creature or planeswalker.
III — Up to one target artifact you control becomes an artifact creature with base power and toughness 4/4 until end of turn.

Flash (You may cast this spell any time you could cast an instant.)
When this creature enters, you may return another target creature you control to its owner's hand.

Creatures you control get +1/+1.
: Exile target nonland permanent you don't control until this enchantment leaves the battlefield. Activate only as a sorcery and only once.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

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Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Death Grasp deals X damage to any target. You gain X life.

Gain control of target creature with mana value X.

Flying
When this Vehicle enters, you get (two energy counters).
Pay : This Vehicle gains lifelink until end of turn.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

When this enchantment enters, exile up to X target creatures. For each of those cards, its owner may play it for as long as it remains exiled.
Whenever one or more nontoken creatures enter, if one or more of them entered from exile or was cast from exile, you draw a card. This ability triggers only once each turn.

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
Whenever Donna Noble or a creature it's paired with is dealt damage, Donna Noble deals that much damage to target opponent.
Doctor's companion (You can have two commanders if the other is the Doctor.)

Destroy target artifact or enchantment. Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Flying, deathtouch
Exhaust — : Reveal cards from the top of your library until you reveal two land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order. Put a +1/+1 counter on this creature. (Activate each exhaust ability only once.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Whenever this creature deals combat damage to a player, you may draw that many cards.

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Whenever this creature deals combat damage to a player, you may destroy target enchantment that player controls.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Flash
, Return an unblocked attacking Rogue you control to its owner's hand: Put this card from your hand onto the battlefield tapped and attacking.
Whenever Zareth San deals combat damage to a player, you may put target permanent card from that player's graveyard onto the battlefield under your control.

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Enchant creature
Enchanted creature gets +7/+7 and has trample.