True Conviction

Creatures you control have double strike and lifelink.

Hagra Broodpit

Hagra Broodpit enters tapped.
{T}: Add {B}.

This spell costs {1} less to cast if an opponent controls no basic lands.
Destroy target creature.

As Agadeem, the Undercrypt enters, you may pay 3 life. If you don't, it enters tapped.
{T}: Add {B}.

Return from your graveyard to the battlefield any number of target creature cards that each have a different mana value X or less.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Flying, first strike, lifelink, protection from Demons and from Dragons

As Emeria, Shattered Skyclave enters, you may pay 3 life. If you don't, it enters tapped.
{T}: Add {W}.

Create two 4/4 white Angel Warrior creature tokens with flying. Non-Angel creatures you control gain indestructible until your next turn.