AI chooses a first (usual weaker) trigger when casting Tishana's Tidebinder/Consign to Memory

**Describe the bug**
AI selects a first (usual weaker) trigger from among two or more triggers in the stack from different sources when AI casts Tishana's Tidebinder or Consign to Memory.

**To Reproduce**
Steps to reproduce the behavior:
1. Player has Champion of Rhonas and Noble Hierarch
2. AI has Tishana's Tidebinder in hands and 3+ untapped lands on the battlefield
3. Player attacks with Champion of Rhonas and exert it
4. Two triggers in stack (first exalted + second exert)
5. AI casts Tishana's Tidebinder vexalted trigger

or

1. Player casts Phlage, Titan of Fire's Fury
2. AI has 1 untapped Island on the battlefield and Consign to Memory in hands
3. AI casts Consign to Memory and chooses trigger "When Phlage enters, sacrifice it unless it escaped."

**Expected behavior**
AI should choose a most danger trigger from two or more triggers in stack from different sources.

**Desktop**
OS: Windows 10
Java Version: 1.8.0_202-b08
Forge Version: 1.6.64-SNAPSHOT-08.04

**Screenshots**