Sram, Senior Edificer

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

Rustvale Bridge

Rustvale Bridge enters tapped.
Indestructible
{T}: Add {R} or {W}.

Silverbluff Bridge enters tapped.
Indestructible
{T}: Add {U} or {R}.

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

Equipped creature gets +1/+0.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Whenever an artifact you control enters, Reckless Fireweaver deals 1 damage to each opponent.

Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Draw a card.

Razortide Bridge enters tapped.
Indestructible
{T}: Add {W} or {U}.