Manahive

Equivalent cards to Autarch Mammoth (which is a green creature that gives you the city's blessing as it enters the battlefield and has trample) are:

• Verdant Rebirth is not equivalent; focus instead on creatures.
• Carnage Tyrant (Green, trample, large threat)
• Gigantosaurus (Green, huge body but no trample)
• Canopy Gorger (Green, trample, big stats)

Reason: These are green creatures with high power/toughness and/or trample, similar in playstyle to Autarch Mammoth. No other card gives the city's blessing directly on ETB, but these are close in color and functionality.