Tactical Challenge #4

[Keravath]

Just a couple of comments.

1) Dispel magic doesn't work against a construct unless the DM decides it does.

"Choose one creature, object, or magical effect within range. Any spell of 3rd level or lower on the target ends."

RAW, dispel magic in 5e just dispels spells or similar magical effects. Dispel magic doesn't work to stop constructs (including warforged), golems, undead, or the functioning of magic items as it did in previous editions.

2) RAW, you can't ready shove.

"Using the Attack action, you can make a special melee attack to shove a creature, either to knock it prone or push it away from you."

Ready is distinct from the Attack action even if you use ready to prepare an attack. So, at least RAW, you can't shove with a Ready action. It's similar to why you can't shove or grapple with an opportunity attack.

3) I really liked the idea of the silence spell. However, it doesn't shut down the kiss of the BBEG which is the biggest threat to the party in this case. At least three of the party are almost guaranteed to be charmed with advantage on the attack and disadvantage on the DC 16 saving throw. Although the paladin might be able to make it, the barbarian is likely to fail. Using the summoned animals to prevent the BBEG from moving might work though or at least slow them down. The BBEG does have counterspell and that does not require a verbal component but she only has one reaction/turn.