Equivalent cards to Might of the Nephilim (Green):
1. Giant Growth — Gives +3/+3 for G, simple and efficient.
2. Become Immense — Offers +6/+6, though requires delve.
3. Infuriate — +3/+2 at instant speed, cheap pump.
4. Colossal Might — RG, +4/+2 and trample, fits multicolor boost theme.
All give temporary power/toughness boosts, similar to Might of the Nephilim.