Silent Sentinel

Flying Inspired — Whenever this creature becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.

Tromokratis has hexproof unless it's attacking or blocking. Tromokratis can't be blocked unless all creatures defending player controls block it. (If any creature that player controls doesn't block this creature, it can't be blocked.)

Flying B, Sacrifice another creature: Regenerate this creature. 2B, Sacrifice two other creatures: Destroy target creature.

Inspired — Whenever this creature becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's mana value.

Fated Conflagration deals 5 damage to target creature or planeswalker. If it's your turn, scry 2.

Flying 1R: This creature deals 1 damage to target creature. That creature can't block this combat. Activate only if this creature is attacking.

Tribute 6 (As this creature enters, an opponent of your choice may put six +1/+1 counters on it.) When this creature enters, if tribute wasn't paid, you may have this creature fight another target creature. (Each deals damage equal to its power to the other.)

T: Untap another target permanent.