Flying

As long as Archangel of Tithes is untapped, creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures.

As long as Archangel of Tithes is attacking, creatures can't block unless their controller pays for each of those creatures.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Dominaria enters the battlefield, you gain 4 life and draw a card.

Flying

If damage would be dealt to Phyrexian Vindicator, prevent that damage. When damage is prevented this way, Phyrexian Vindicator deals that much damage to any other target.

Whenever you cast a modal spell, choose up to X, where X is the number of times you chose a mode for that spell —

• Exile the top card of your library. Until the end of your next turn, you may play it.

• Put a +1/+1 counter on Riku of Many Paths. It gains trample until end of turn.

• Create a 1/1 blue Bird creature token with flying.

Flying

Escape—, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Skyway Robber escapes with "Whenever Skyway Robber deals combat damage to a player, you may cast an artifact, instant, or sorcery spell from among cards exiled with Skyway Robber without paying its mana cost."

: Transform Tarkir Duneshaper. Activate only as a sorcery. ( can be paid with either or 2 life.)