High Alert Combos
| Combo | Category | Reviewed |
|---|---|---|
| Cavalcade of Calamity + High Alert | None | None |
| Arcades, the Strategist + High Alert | None | None |
| High Alert + Wall of Denial + Wall of Frost | None | None |
| High Alert + Tower Defense | None | None |
| High Alert + Tetsuko Umezawa, Fugitive | None | None |
| Arboreal Grazer + High Alert | None | None |
| High Alert + Huatli, the Sun's Heart | None | None |
| High Alert + Tree of Perdition | None | None |
| Assault Formation + Axebane Guardian + High Alert | None | None |
| Aegis of the Heavens + Fencing Ace + High Alert | None | None |
| Axebane Guardian + High Alert | infinite | True |
| High Alert + Overgrown Battlement + Prismite | None | None |
| High Alert + Overgrown Battlement | None | None |
| Axebane Guardian + High Alert + Wall of Kelp | None | None |
| High Alert + Primal Rage + Unnatural Growth | None | None |
| Animating Faerie + High Alert + Nyx Lotus | None | None |
| High Alert + Karn, the Great Creator + Nyx Lotus | None | None |