Alternatives to Redemptor Dreadnought

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Redemptor Dreadnought {5}

Artifact Creature — Astartes Dreadnought

Fallen Warrior — As an additional cost to cast this spell, you may exile a creature card from your graveyard.
Trample
Plasma Incinerator — Whenever this creature attacks, if a card is exiled with it, it gets +X/+X until end of turn, where X is the power of the exiled card.

Here are 4 cards you can replace Redemptor Dreadnought with in your deck.